Lotus Ring + Solemnity + Kratos, God of War

Lotus Ring

Solemnity

Kratos, God of War

How it works

1. Activate the creature with undying by tapping and sacrificing it, adding 3.
2. When the creature dies, Solemnity triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it.
3. Activate Lotus Ring's equip ability by paying 3, attaching it to the undying creature.
4. Repeat.

This clever loop relies on Solemnity to completely shut down the usual drawback of undying creatures, ensuring they return to the battlefield without ever gaining a +1/+1 counter. With that safety net in place, Lotus Ring steps in as the engine: you tap and sacrifice your creature to its ability for a burst of mana, and then use that exact mana to pay the equip cost, strapping Lotus Ring right back onto the creature when it returns. Kratos, God of War rounds out the battlefield with his double strike and haste, though the true power here is the endless cycle of life and death generating infinite triggers.