Almost always goes first. The user is left with at least 1 HP following any attacks for one turn, but the move's success rate halves with each consecutive use of Protect, Detect or Endure.
Does nothing if the user is awake. If the user asleep, it randomly performs one of its attacks. Rest will fail if it is selected. Sleep Talk's generated attacks do not cost PP, but it cannot generate moves with 0 PP, itself, Assist, Bide, Disabled attacks, Focus Punch, Metronome, Mirror Move, Uproar, or attacks with a charge-up turn like Fly or Skull Bash. (Moves with a recharge turn like Hyper Beam can be generated.)
This move is temporarily replaced by the target's last move; the replacement move will have 5 PP and become part of the user's moveset until the user switches out or the battle ends. Mimic copies attacks even if they miss or the user has immunity toward their type; it cannot copy itself, Struggle, Transform, Sketch, Metronome or moves that the user already knows, and it will fail if the target has yet to use a move.
The user takes one-fourth of its maximum HP to create a substitute; this move fails if the user does not have enough HP for this. Until the substitute is broken, it receives damage from all attacks made by other Pokemon and shields the user from status effects and stat modifiers caused by other Pokemon. The user is still affected by Tickle, Hail, Sandstorm and Attract from behind its Substitute. If a Substitute breaks from a hit during a multistrike move such as Fury Attack, the user takes damage from the remaining strikes.
The target's most recent move is reduced by 4 PP; this fails if the target has not yet performed a move, if the target's last move has run out of PP, or if the target can only use Struggle.
Calculates the average of the user's current HP and the target's HP; the HP of both Pokemon is set to this average. Pokemon can be healed by Pain Split even under the effects of Heal Block.
