Melira, Sylvok Outcast + Viscera Seer + River Kelpie

Melira, Sylvok Outcast

Viscera Seer

River Kelpie

How it works

1. Activate Viscera Seer by sacrificing River Kelpie.
2. When River Kelpie dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Melira.
3. When River Kelpie enters, it triggers, causing you to draw a card
4. Resolve the Viscera Seer ability.
5. Repeat.