Imodane, the Pyrohammer + Zada, Hedron Grinder + Furnace of Rath Combo

All permanents on the battlefield.

You have an instant or sorcery card in hand that can target a single creature and deal damage to it. You have enough mana to pay for the instant or sorcery.

Cast the instant or sorcery spell by paying its mana cost, targeting Zada.

Zada triggers, copying the spell for each other creature you control the spell could target, ensuring that Imodane's copy is put onto the stack first.

Resolve the first copy, dealing twice the listed amount of damage to the targeted creature.

Imodane triggers, dealing four times the listed amount of damage to each opponent.

Repeat from step 3 for each remaining copy.

Significant damage