Goblin Bombardment + Dualcaster Mage + Incarnation Technique

Goblin Bombardment

Dualcaster Mage

Incarnation Technique

How it works

1. Cast Incarnation Technique by paying its mana cost, targeting any applicable target.
2. Holding priority, cast Dualcaster Mage by paying its mana cost.
3. When Dualcaster Mage enters, it triggers, targeting Incarnation Technique.
4. Holding priority, activate Goblin Bombardment by sacrificing Dualcaster Mage.
5. Resolve the Dualcaster Mage trigger, copying Incarnation Technique, with the copy targeting Dualcaster Mage
6. Resolve the Incarnation Technique copy, returning Dualcaster Mage from your graveyard to the battlefield.
7. Repeat from step 3.

This clever loop centers around looping Dualcaster Mage and Incarnation Technique to churn through your entire library while dealing lethal damage. By casting Incarnation Technique and responding with Dualcaster Mage, the Mage's enter-the-battlefield ability copies the sorcery, which resolves to bring the sacrificed Mage right back from the graveyard. Goblin Bombardment provides the essential sacrifice outlet to bin Dualcaster Mage each iteration, turning the infinite recursion into a stream of damage that closes out the game on the spot.