Green Goblin, Nemesis + Tortured Existence + Crystalline Crawler + Rukarumel, Biologist

Green Goblin, Nemesis

Tortured Existence

Crystalline Crawler

Rukarumel, Biologist

How it works

1. Activate Tortured Existence by paying and discarding a creature card.
2. Green Goblin's first ability triggers, putting a +1/+1 counter on Crystalline Crawler.
3. Resolve the Tortured Existence ability, returning another creature card from your graveyard to your hand.
4. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding .
5. Repeat.