What it does
This Pokemon's non-damaging moves have their priority increased by 1. Opposing Dark-type Pokemon are immune to these moves, and any move called by these moves, if the resulting user of the move has this Ability.
Smogon rates it
4 on their competitive scale, where 5 is format-defining and 0 is
actively unhelpful.
Who runs it
7 of the 282 Pokémon measured on the
Regulation M-B ladder run Prankster.
The one that matters most is Whimsicott,
which is on 22.5% of teams and runs it on 99.8% of its sets.
The full list is above, ordered by how much of the format each one is.
Who has it at all
6 of the Pokémon legal in Regulation M-B have Prankster in
their ability list, and 7 of those are played often enough to measure. An
ability is not a choice the way a move or an item is — most Pokémon that have it have no
alternative worth taking — so the gap here is about what sees play, not about what is preferred.
How concentrated it is
Across the ladder, Prankster accounts for an expected
0.38 of the six slots on an average team, which makes it the
2nd most-brought of the 19 abilities this format runs.
60% of that comes from Whimsicott alone, so it is really one Pokémon’s ability rather than the format’s.
Its users are mostly Fairy (3), Dark (3) and Ghost (2).
Where these numbers come from
Usage is Smogon's published statistics for the Regulation M-B VGC ladder, and the description is
the one shipped in the Pokémon Showdown data set. Both are regenerated on every build rather than
written by hand, so this page follows the format instead of trailing it. Take any of it to the
team builder or the damage calculator.
Whimsicott
22.5%
99.8%
Grimmsnarl
10.4%
99.4%
Sableye
3.4%
99%
Meowstic
0.77%
96.8%
Klefki
0.43%
100%
Mega Banette
0.20%
100%
Liepard
0.15%
98.4%