Delina, Wild Mage + Bloodthirster + Sword of Vengeance

Delina, Wild Mage

Bloodthirster

Sword of Vengeance

How it works

1. Declare Delina as an attacker, attacking any opponent unable to block and kill your creatures.
2. Delina triggers, creating at least one token copy of Bloodthirster that is tapped and attacking.
3. Deal combat damage with the Bloodthirster token.
4. The Bloodthirster token triggers, causing you to untap it and to get an additional combat phase after this one.
5. At the end of the combat phase, the Bloodthirster token triggers, exiling itself.
6. Repeat.