Dualcaster Mage + Thunderous Debut + Mortuary + Goblin Bombardment

Dualcaster Mage

Thunderous Debut

Mortuary

Goblin Bombardment

How it works

1. Cast Thunderous Debut by paying 6 and sacrificing an artifact, enchantment or token.
2. Holding priority, cast Dualcaster Mage by paying 1.
3. When Dualcaster Mage enters the battlefield, it triggers, copying Thunderous Debut.
4. Activate Goblin Bombardment by sacrificing Dualcaster Mage.
5. When Dualcaster Mage dies, Mortuary triggers, putting Dualcaster Mage on top of your library from your graveyard.
6. Resolve the Goblin Bombardment ability, dealing 1 damage to any target.
7. Resolve the copy of Thunderous Debut, causing you to look at the top twenty cards of your library and put Dualcaster Mage and up to one other creature card onto the battlefield.
8. Repeat from step 3.

This loop is a masterclass in recursive spell-copying, turning a single cast of Thunderous Debut into an endless engine of destruction. As the copied Thunderous Debut resolves, it digs deep into your library to pull Dualcaster Mage and another creature straight onto the battlefield, ensuring Dualcaster Mage is always ready to copy the spell again. Meanwhile, Goblin Bombardment provides the necessary sacrifice outlet to clear away Dualcaster Mage, which triggers Mortuary to seamlessly stack the Mage right back onto the top of your library where Thunderous Debut can find it.