Persistent Constrictor + Shilgengar, Sire of Famine + Stalwart Successor

WBG identity

Commander legal

The 3 combo pieces

• Persistent Constrictor
• Shilgengar, Sire of Famine
• Stalwart Successor

How to execute it

1. Activate Shilgengar by sacrificing Persistent Constrictor
2. When Persistent Constrictor dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Persistent Constrictor enters, Stalwart Successor triggers, putting a +1/+1 counter on Persistent Constrictor
4. Resolve the Shilgengar ability.
5. Repeat.

What the combo produces

• Infinite Blood tokens
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers