Dualcaster Mage + Bloodflow Connoisseur + Graceful Reprieve

Dualcaster Mage

Bloodflow Connoisseur

Graceful Reprieve

How it works

1. Cast Graceful Reprieve by paying its mana cost.
2. Holding priority, cast Dualcaster Mage by paying its mana cost.
3. When Dualcaster Mage enters, it triggers, copying Graceful Reprieve, with the copy targeting Dualcaster Mage.
4. Resolve the copy of Graceful Reprieve.
5. Holding priority, activate Bloodflow Connoisseur by sacrificing Dualcaster Mage.
6. When Dualcaster Mage dies, Graceful Reprieve triggers, returning Dualcaster Mage from your graveyard to the battlefield.
7. Repeat from step 3.
8. Resolve all Bloodflow Connoisseur abilities from step 5.

This clever loop puts Dualcaster Mage into an infinite cycle of rebirth using Graceful Reprieve to continuously return it to the battlefield whenever it dies. While Dualcaster Mage infinitely copies the spell to sustain the chain, Bloodflow Connoisseur acts as the willing executioner, providing a free sacrifice outlet that instantly triggers Graceful Reprieve's delayed effect while growing steadily larger from all the accumulated +1/+1 counters.