Marang River Prowler + Phyrexian Altar + Planar Gate

Marang River Prowler

Phyrexian Altar

Planar Gate

How it works

1. Activate Phyrexian Altar by sacrificing Marang River Prowler, adding .
2. Cast Marang River Prowler from your graveyard by paying .
3. Repeat.

This cunning loop turns the unassuming Marang River Prowler into a self-sustaining engine of creation and demise. Because Planar Gate reduces the cost of creature spells by {2}, the Prowler can be recast directly from your graveyard for a single blue mana, which is conveniently provided right back when you sacrifice it to Phyrexian Altar to generate mana. As long as you control a black or green permanent to satisfy the Prowler's casting condition, this continuous cycle feeds an infinite stream of sacrifices, triggers, and storm count.