Dualcaster Mage + Bartolomé del Presidio + Behold the Sinister Six!

Dualcaster Mage

Bartolomé del Presidio

Behold the Sinister Six!

How it works

1. Cast Behold the Sinister Six! by paying its mana cost
2. Holding priority, cast Dualcaster Mage by paying its mana cost.
3. When Dualcaster Mage enters, it triggers, targeting Behold the Sinister Six!.
4. Holding priority, activate Bartolomé del Presidio by sacrificing Dualcaster Mage.
5. Resolve the Dualcaster Mage trigger, copying Behold the Sinister Six!, with the copy targeting Dualcaster Mage
6. Resolve the Behold the Sinister Six! copy, returning Dualcaster Mage from your graveyard to the battlefield.
7. Repeat from step 3.

This clever loop turns the massive reanimation potential of Behold the Sinister Six! into an infinite engine by leveraging Dualcaster Mage's spell-copying ability right as it hits the stack. Once Dualcaster Mage copies the original spell to target itself in the graveyard, Bartolomé del Presidio steps in as the designated executioner, offering a free and instant sacrifice outlet that triggers death effects while fueling his own growth with +1/+1 counters. Because the copied Behold the Sinister Six! constantly brings Dualcaster Mage right back to the battlefield to repeat the process, you get an endlessly recurring loop that generates infinite sacrifice, entry, and leave-the-battlefield triggers all at once.