Shilgengar, Sire of Famine + Dualcaster Mage + Behold the Sinister Six!

Shilgengar, Sire of Famine

Dualcaster Mage

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 Shilgengar 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 a single casting of Behold the Sinister Six! into an endless cycle of resurrection and sacrifice by looping Dualcaster Mage to continually copy the spell. Meanwhile, Shilgengar, Sire of Famine sits on the battlefield waiting to turn that continuous sacrifice into an endless bounty of Blood tokens, which you can later cash in to flood the board with your entire graveyard. Because Behold the Sinister Six! targets Dualcaster Mage in the graveyard along with other options, the copied spell can always bring the Mage right back to repeat the process.