Boonweaver Giant + Shilgengar, Sire of Famine + Necrogen Communion

Boonweaver Giant

Shilgengar, Sire of Famine

Necrogen Communion

How it works

1. Activate Shilgengar by sacrificing Boonweaver Giant
2. When Boonweaver Giant dies, Necrogen Communion triggers, returning Boonweaver Giant from your graveyard to the battlefield
3. When Boonweaver Giant enters, it triggers, returning Necrogen Communion from your graveyard to the battlefield attached to Boonweaver Giant.
4. Resolve the Shilgengar ability from step 1.
5. Repeat.

This ingenious loop turns Shilgengar, Sire of Famine and Boonweaver Giant into an endless sacrifice engine, fueled by the recursive lifeline of Necrogen Communion. Each time Shilgengar demands a sacrifice, Boonweaver Giant goes to the graveyard, instantly triggering Necrogen Communion to bring the Giant right back; in turn, the Giant's entrance lets you fetch Necrogen Communion straight back out to wrap around it once more. Because Shilgengar generates a Blood token for every creature sacrificed, repeating this cycle turns the whole process into infinite artifacts, death triggers, and enter-the-battlefield effects.