Dualcaster Mage + Sevinne's Reclamation + Bloodflow Connoisseur

Dualcaster Mage

Sevinne's Reclamation

Bloodflow Connoisseur

How it works

1. Cast Sevinne's Reclamation 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 Sevinne's Reclamation.
4. Holding priority, activate Bloodflow Connoisseur by sacrificing Dualcaster Mage.
5. Resolve the Dualcaster Mage trigger, copying Sevinne's Reclamation, with the copy targeting Dualcaster Mage
6. Resolve the Sevinne's Reclamation copy, returning Dualcaster Mage from your graveyard to the battlefield.
7. Repeat from step 3.

This ingenious loop turns a simple recursion spell into an infinite engine by constantly recycling Dualcaster Mage from the graveyard. With Bloodflow Connoisseur already on the battlefield to feed your sacrifice triggers and grow with endless +1/+1 counters, you cast Sevinne's Reclamation to set the stage. When Dualcaster Mage enters the battlefield to copy that spell, the Connoisseur immediately sacrifices it back to the graveyard, leaving the copy free to resolve and use Sevinne's Reclamation's effect to bring Dualcaster Mage right back for another iteration.