Forewarn is an Ability that causes the Pokémon to display the opponent's highest power move. Damaging moves without fixed base powers have assigned base powers specifically for Forewarn:

Power Moves
160 Fissure, Guillotine, Horn Drill, Sheer Cold
120 Counter, Metal Burst, Mirror Coat
80 Dragon Rage, Endeavor, Flail, Frustration, Grass Knot, Gyro Ball, Hidden Power, Low Kick, Natural Gift, Night Shade, Psywave, Return, Reversal, Seismic Toss, SonicBoom, Trump Card, Wring Out


Pokémon Type Ability 1 Ability 2 Hidden Ability
Drowzee.pngDrowzee PsychicType.pngPsychic [[File:{{{3}}}Type.png|16px|link={{{3}}}]][[{{{3}}}|{{{3}}}]] Insomnia Forewarn Inner Focus
Hypno.pngHypno PsychicType.pngPsychic [[File:{{{3}}}Type.png|16px|link={{{3}}}]][[{{{3}}}|{{{3}}}]] Insomnia Forewarn Inner Focus
Jynx.pngJynx IceType.pngIce PsychicType.pngPsychic Oblivious Forewarn Dry Skin
Smoochum.pngSmoochum IceType.pngIce PsychicType.pngPsychic Oblivious Forewarn Hydration