Truant

Truant causes the ability-bearer to only attack every alternate turn. On the even turns, it will say the Pokémon is loafing around.

If a Pokémon with Truant uses a move that requires recharging on the second turn (such as Hyper Beam), it will recharge on the same turn the Pokémon loafs around. Moves where the user prepares on the first turn and attacks on the second (such as Solarbeam or Fly) cannot be used.

The moves Worry Seed, Entrainment and Simple Beam do not work on Pokémon with Truant.

Truant can technically be Skill Swapped away, however neither Slakoth, Slaking or Durant learn it.

Game descriptions

Ruby
Sapphire
FireRed
LeafGreen
Emerald
Moves only every two turns.
Diamond
Pearl
Platinum
The Pokémon can’t attack on consecutive turns.
HeartGold
SoulSilver
Pokémon can’t attack on consecutive turns.
Black
White
Black 2
White 2
Pokémon can’t attack on consecutive turns.
X
Y
O.Ruby
A.Sapphire
The Pokémon can’t attack on consecutive turns.
Sun
Moon
Ultra Sun
Ultra Moon
The Pokémon can’t use a move the following turn if it uses one.
Sword
Shield
B.Diamond
S.Pearl
The Pokémon can’t use a move if it had used a move on the previous turn.

Other languages

EnglishTruant
SpanishAusente
ItalianPigrone
Japaneseなまけ (Namake)
GermanSchnarchnase
FrenchAbsentéisme