Slogurk, the Overslime + Primal Prayers + Aetherstorm Roc + Dream Trawler

Slogurk, the Overslime

Primal Prayers

Aetherstorm Roc

Dream Trawler

How it works

1. Activate Dream Trawler by discarding a land card.
2. Slogurk triggers, putting a +1/+1 counter on it.
3. Resolve the Dream Trawler ability.
4. Repeat from step 1 two additional times.
5. Activate Slogurk by removing three +1/+1 counters from it, returning it from the battlefield to your hand.
6. When Slogurk leaves the battlefield, it triggers, returning three land cards from your graveyard to your hand.
7. Cast Slogurk by paying E due to Primal Prayers.
8. When Slogurk enters, Aetherstorm Roc triggers, causing you to get E.
9. Repeat.

This clever loop relies on Dream Trawler's activated ability to continuously discard land cards, which directly feeds Slogurk, the Overslime by stacking up +1/+1 counters and stocking your graveyard. Once Slogurk bounces itself back to your hand using those accumulated counters, its leave-the-battlefield trigger neatly returns those discarded lands right back to you. From there, Primal Prayers allows you to recast Slogurk using energy instead of mana, while Aetherstorm Roc quietly replenishes that spent energy every single time Slogurk enters the battlefield anew.