Infinite creature tokens, Infinite ETB, Infinite landfall triggers
Activate Scaretiller by tapping it, creating a 1/1 Elf Warrior creature token.
Scaretiller triggers, returning Gateway Plaza from your graveyard to the battlefield tapped.
Gateway Plaza enters the battlefield, triggering itself and Retreat to Coralhelm.
Resolve the Gateway Plaza trigger, choosing to sacrifice it.
Resolve the Retreat to Coralhelm trigger, untapping Scaretiller.
Repeat.
Component Cards
How It Works
Activate Scaretiller by tapping it, creating a 1/1 Elf Warrior creature token.
Scaretiller triggers, returning Gateway Plaza from your graveyard to the battlefield tapped.
Gateway Plaza enters the battlefield, triggering itself and Retreat to Coralhelm.
Resolve the Gateway Plaza trigger, choosing to sacrifice it.
Resolve the Retreat to Coralhelm trigger, untapping Scaretiller.
Repeat.