Effectiveness
From MHWiki
Effectiveness refers to the bonus (or penalty) when using a Trap against Mice of different Power Types. It is believed to be a modifier applied on the Power or Luck values of a Trap, or possibly both.
Players should avoid hunting at a location where their current traps will be less effective against most of the mice there, such as the Mousoleum without a Shadow/Arcane trap, or the Furoma region without a Tactical trap.
Effectiveness Levels
A Trap can have 1 of 3 possible effectiveness levels against a mouse:
- Very Effective
- A very effective message implies that there was a bonus to the trap power/luck in catching the mouse. No message is shown if the catch result was a miss.
- Normal Effectiveness
- No additional message is shown for a normal catch. This implies that no modifier has been applied to the current trap power/luck in catching the mouse, and is the most commonly encountered effectiveness level. No message is shown if the catch result was a miss.
- Less Effective
- A less effective message will appear when there is a penalty to the trap power/luck in attracting a mouse and the catch result was a miss. This usually indicates that the wrong trap type is being used for the current location. No message is shown if it was a successful catch.
- Note that trap effectiveness has no bearing on the Attraction Rate of a trap and the type of mice attracted, which is dependent on the baited cheese.
Effectiveness Chart
This following chart lists the effectiveness of the 4 existing Trap Power Types against the different breeds of mice. There are some exceptions to the chart, and these have been noted under the exceptions section.
| Mouse | Mouse Power Type |
Physical Trap |
Shadow Trap |
Tactical Trap |
Arcane Trap |
Hydro Trap |
|---|---|---|---|---|---|---|
| Abm. Snow | Physical | Normal | Normal | Normal | Normal | Normal |
| Acolyte | Arcane | Less Effective | Less Effective | Less Effective | Less Effective | Unknown |
| Aged | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Alchemist | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Alnilam | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Alnitak | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Archer | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Assassin | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Bat | Physical | Normal | Normal | Normal | Normal | Normal |
| Bear | Physical | Normal | Normal | Normal | Normal | Normal |
| Beast Tamer | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Bionic | Physical | Normal | Normal | Normal | Normal | Normal |
| Black Widow | Physical | Normal | Normal | Normal | Normal | Normal |
| Bottled | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Brown | Physical | Normal | Normal | Normal | Normal | Normal |
| Burglar | Physical | Normal | Normal | Normal | Normal | Normal |
| Caretaker | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Centaur | Tactical | Normal | Less Effective | Very Effective | Less Effective | Normal |
| Chameleon | Physical | Normal | Normal | Normal | Normal | Normal |
| Champion | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Cook | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Conjurer | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Conqueror | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Cyclops | Physical | Normal | Normal | Normal | Normal | Normal |
| Derr Chieftain | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Defender | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Diamond | Physical | Normal | Normal | Normal | Normal | Normal |
| Dwarf | Tactical | Normal | Less Effective | Very Effective | Less Effective | Normal |
| Eagle Owl | Tactical | Normal | Less Effective | Very Effective | Less Effective | Normal |
| Elder | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Elf | Physical | Normal | Normal | Normal | Normal | Normal |
| Elub Chieftain | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Elven Princess | Physical | Normal | Normal | Normal | Normal | Normal |
| Fairy | Tactical | Normal | Less Effective | Very Effective | Less Effective | Normal |
| Finder | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Foxy | Tactical | Normal | Less Effective | Very Effective | Less Effective | Normal |
| Frog | Physical | Normal | Normal | Normal | Normal | Normal |
| Gargoyle | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Gate Guardian | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Ghost | Shadow | Less Effective | Very Effective | Less Effective | Normal | Unknown |
| Gladiator | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Goblin | Shadow | Less Effective | Very Effective | Less Effective | Normal | Unknown |
| Gold | Physical | Normal | Normal | Normal | Normal | Normal |
| Golem | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Gorgon | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Grandfather | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Granite | Physical | Normal | Normal | Normal | Normal | Normal |
| Grey | Physical | Normal | Normal | Normal | Normal | Normal |
| Grunt | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Guardian | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Hapless | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Harpy | Shadow | Less Effective | Normal | Less Effective | Normal | Unknown |
| Healer | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Hollowhead | Physical | Normal | Normal | Normal | Normal | Normal |
| Hydra | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Keeper | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Kung Fu | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Leprechaun | Physical | Normal | Normal | Normal | Normal | Normal |
| Leviathan | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Lich | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Lycan | Shadow | Less Effective | Very Effective | Less Effective | Normal | Unknown |
| Master - Belt | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Master - Claw | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Master - Dojo | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Master - Fang | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Mermaid | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Mintaka | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Mobster | Physical | Normal | Normal | Normal | Normal | Normal |
| Mole | Physical | Normal | Normal | Normal | Normal | Normal |
| Monk | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Monster | Physical | Normal | Normal | Normal | Normal | Normal |
| Moosker | Physical | Normal | Normal | Normal | Normal | Normal |
| Mummy | Shadow | Less Effective | Very Effective | Less Effective | Normal | Unknown |
| Mutated Grey | Physical | Normal | Normal | Normal | Normal | Normal |
| Mutated White | Physical | Normal | Normal | Normal | Normal | Normal |
| Mystic | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Narrator | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Nerg Chieftain | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Nibbler | Physical | Normal | Normal | Normal | Normal | Normal |
| Ninja | Tactical | Normal | Less Effective | Very Effective | Less Effective | Normal |
| Nomad | Tactical | Normal | Less Effective | Very Effective | Less Effective | Normal |
| Ooze | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Pack | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Pathfinder | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Pinchy | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Pirate | Tactical | Normal | Less Effective | Very Effective | Less Effective | Normal |
| Protector | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Rvns. Zombie | Shadow | Less Effective | Very Effective | Less Effective | Normal | Unknown |
| Reaper | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Renegade | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Salt Water Snapper | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Samurai | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Scavenger | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Scout | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Seer | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Shaman | Physical | Normal | Normal | Normal | Normal | Normal |
| Shelder | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Shipwrecked | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Siren | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Skeleton | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Slayer | Tactical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Soothsayer | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Spectre | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Spellbinder | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Spider | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Squeaken | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Steel | Physical | Normal | Normal | Normal | Normal | Normal |
| Student - Belt | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Student - Claw | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Student - Fang | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Sylvan | Physical | Normal | Normal | Normal | Normal | Normal |
| Swabbie | Hydro | Normal | Less Effective | Less Effective | Less Effective | Very Effective |
| Taleweaver | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Tiger | Tactical | Normal | Less Effective | Very Effective | Less Effective | Normal |
| Trailblazer | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Treant | Physical | Normal | Normal | Normal | Normal | Normal |
| Troll | Physical | Normal | Normal | Normal | Normal | Normal |
| Vampire | Shadow | Less Effective | Very Effective | Less Effective | Normal | Unknown |
| Vanquisher | Hydro | Unknown | Unknown | Unknown | Unknown | Unknown |
| Water Nymph | Tactical | Normal | Less Effective | Very Effective | Less Effective | Normal |
| White | Physical | Normal | Normal | Normal | Normal | Normal |
| Wicked Witch | Physical | Normal | Normal | Normal | Normal | Normal |
| Wiggler | Physical | Normal | Normal | Normal | Normal | Normal |
| Wight | Forgotten | Less Effective | Normal | Less Effective | Very Effective | Unknown |
| Wordsmith | Physical | Unknown | Unknown | Unknown | Unknown | Unknown |
| Worker | Tactical | Less Effective | Less Effective | Very Effective | Less Effective | Unknown |
| Zombie | Physical | Normal | Normal | Normal | Normal | Normal |
| Mouse | Power Type | Physical | Shadow | Tactical | Arcane | Hydro |
- iTunes Mouse, Master Burglar Mouse are not included.
Exceptions
- Ninja mice have been noted to be resistant to Physical Traps in the Dojo.
- Physical traps have been noted to be of normal effectiveness against most Tactical mice in the Training Grounds, except against the Assassin Mouse.
- Physical traps are of normal effectiveness against Tactical mice in the Calm Clearing.
- Some, if not all, Physical mice resist Arcane damage in the Tribal Isles.
History of Changes
- When Arcane traps were first released, it was tested and found to be of Normal Effectiveness against the Master of the Dojo, a Tactical type mouse. However, shortly before the release of the ACRONYM, it was found to have changed to be Less Effective.
See Also
- Cheat Sheet – Condensed Effectiveness Chart
- Hunting Sequence – Official information on how a mouse catch is calculated
- Power Type – List of the different power types available
- Forum Discussion by Adrian Hew, which provided the chart information.
- Catch Rate Estimates by Pooflinger's Tools.
- Trap Effectiveness by MouseHunt Analytics