Walking Ballista + Enduring Renewal

Walking Ballista

Enduring Renewal

How it works

1. Cast Walking Ballista by paying 0.
2. Walking Ballista enters the battlefield and dies as a state-based action due to having zero or less toughness.
3. Enduring Renewal triggers, returning Walking Ballista from your graveyard to your hand.
4. Repeat.

By casting Walking Ballista for zero mana, state-based actions immediately send it to the graveyard since it enters with no toughness. This trip to the graveyard triggers Enduring Renewal, whose passive replacement effect and triggered ability step in to immediately bounce the automaton right back to your hand. Because Enduring Renewal forces you to play with your hand revealed and replaces your draws, relying purely on its graveyard-return trigger turns this humble loop into an endless cycle of creature deaths, entries, and leaves-the-battlefield events.