Flame Body (ability)

Effect

If a Pokémon with Flame Body is hit by a move that makes contact, there is a 30% chance the attacker will become burned.

Outside of battle

If a Pokémon with Flame Body (or Magma Armor) and a Pokémon Egg are both in the party Pokémon, the number of steps required to hatch the egg are halved.

Game descriptions

Ruby/Sapphire FireRed/LeafGreen Emerald	Burns the foe on contact.
Diamond/Pearl Platinum HeartGold/SoulSilver	Contact with the Pokémon may burn the foe.
Black/White Black 2/White 2	Contact with the Pokémon may burn the attacker.
X/Y O.Ruby/A.Sapphire	Contact with the Pokémon may burn the attacker.
Sun/Moon Ultra Sun/Ultra Moon	Contact with the Pokémon may burn the attacker.

Pokémon with Flame Body

#	Name	2^nd ability	Hidden ability
126	Magmar	—	Vital Spirit
218	Slugma	Magma Armor	Weak Armor
219	Magcargo	Magma Armor	Weak Armor
240	Magby	—	Vital Spirit
467	Magmortar	—	Vital Spirit
607	Litwick	Flash Fire	Infiltrator
608	Lampent	Flash Fire	Infiltrator
609	Chandelure	Flash Fire	Infiltrator
636	Larvesta	—	Swarm
637	Volcarona	—	Swarm
662	Fletchinder	—	Gale Wings
663	Talonflame	—	Gale Wings

Flame Body as a hidden ability

#	Name	Other abilities
077	Ponyta	Flash Fire Run Away
078	Rapidash	Flash Fire Run Away
146	Moltres	Pressure
485	Heatran	Flash Fire