Stalwart Successor + Phyrexian Altar + Scuzzback Marauders

Stalwart Successor

Phyrexian Altar

Scuzzback Marauders

How it works

1. Activate Phyrexian Altar by sacrificing Scuzzback Marauders
2. When Scuzzback Marauders dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Scuzzback Marauders enters, Stalwart Successor triggers, putting a +1/+1 counter on Scuzzback Marauders
4. Repeat.

This looping engine is fueled by **Scuzzback Marauders** and its persist ability, which normally would exhaust itself once the creature returns with a -1/-1 counter, but **Stalwart Successor** completely bypasses that limitation. Every time **Scuzzback Marauders** re-enters the battlefield, **Stalwart Successor** triggers to place a +1/+1 counter on it, which immediately neutralizes the existing -1/+1 counter through state-based actions so that persist can trigger all over again. Meanwhile, **Phyrexian Altar** turns this endless cycle of sacrifices and returns into a steady stream of infinite colored mana and death triggers.