The following is a list of the strongest attack for each Pokemon type.

Bug type - Megahorn.

Dark type - Sucker Punch, Crunch, Dark Pulse.

Dragon type - Roar of Time.

Electric type - Thunder, Volt Tackle, Zap Cannon.

Fight type - Focus Punch.

Fire type - Blast Burn, Eruption.

Flying type - Sky Attack.

Ghost type - Shadow Force.

Grass type - Frenzy Plant.

Ice type - Blizzard, Sheer Cold.

Normal type - Explosion, Giga Impact.

Poison type - Gunk Shot.

Psychic type - Psycho Boost.

Rock type - Head Smash, Rock Wrecker.

Steel type - Doom Desire.

Water type - Hydro Cannon, Water Spout.