The flamer is a specially engineered flamethrower suited for extended combat engagements. It delivers sustained energy damage and can completely immolate a target.

Fallout

Fireshrieker

Equipped creature has double strike.
Equip {2}

Equipped creature has double strike. (It deals both first-strike and regular combat damage.)
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Commander Masters

Equipped creature has double strike.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Neon Dynasty Commander

Commander Legends

Conspiracy

Magic 2014

Mirrodin

Equipped creature has double strike. (It deals both first-strike and regular combat damage.)
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery. This card comes into play unattached and stays in play if the creature leaves play.)