If At First You Don't Succeed... (Brotherhood of the Fire Fist - Shisa) [SINGLE]

[Premier Alexander Romanov]

Brotherhood of the Fire Fist - Shisa
FIRE/Beast-Warrior/Synchro/Level 7/2000 ATK/1900 DEF
1 Beast-Warrior-Type Tuner + 1 or more non-Tuner FIRE monsters
When this monster is Synchro Summoned: You can target 1 Continuous Spell/Trap Card you control; Set it. At the start of your Battle Phase; you can send any number of "Fire Formation" cards you control to the Graveyard to target a number of "Fire Fist" monsters you control equal to the "Fire Formation" cards sent by this effect; During this Battle Phase, if one of the targets attacks a Defense Position monster, inflict piercing Battle Damage to your opponent. You can only use this effect of a "Brotherhood of the Fire Fist - Shisa" once per turn.

Discuss.