Mass Burn Damage

If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

As an additional cost to cast this spell, sacrifice an artifact. Shrapnel Blast deals 5 damage to any target.

Equipped creature gets +4/+2 and doesn't untap during its controller's untap step. Equip (: Attach to target creature you control. Equip only as a sorcery.)

Double strike