Stalwart Successor + Woe Strider + Safehold Elite

Stalwart Successor

Woe Strider

Safehold Elite

How it works

1. Activate Woe Strider by sacrificing Safehold Elite
2. When Safehold Elite dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Safehold Elite enters, Stalwart Successor triggers, putting a +1/+1 counter on Safehold Elite
4. Resolve the Woe Strider ability.
5. Repeat.

This loop turns Woe Strider's sacrificial altar into an engine for infinite triggers by exploiting the eternal resilience of Safehold Elite. When Safehold Elite returns via persist with a -1/+1 counter, Stalwart Successor steps in as the crucial catalyst, recognizing that first instance of counters being placed and instantly neutralizing the -1/-1 counter by placing a +1/+1 counter on it instead. Because these opposing counters annihilate each other as a state-based action, Safehold Elite is left completely clean and ready to be sacrificed to Woe Strider all over again, churning through your deck with infinite scry 1s along the way.