Stalwart Successor + River Kelpie + Bartolomé del Presidio

Stalwart Successor

River Kelpie

Bartolomé del Presidio

How it works

1. Activate Bartolomé del Presidio by sacrificing River Kelpie
2. When River Kelpie dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When River Kelpie enters, it and Stalwart Successor trigger.
4. Resolve the River Kelpie trigger, causing you to draw a card
5. Resolve the Stalwart Successor trigger, putting a +1/+1 counter on River Kelpie
6. Resolve the Bartolomé del Presidio ability.
7. Repeat.