Zaxara, the Exemplary + Faces of the Past + Wurmcalling + Primal Vigor

Zaxara, the Exemplary

Faces of the Past

Wurmcalling

Primal Vigor

How it works

1. Activate Zaxara by tapping it, adding .
2. Cast Wurmcalling with buyback by paying 2.
3. Zaxara triggers, creating two 0/0 Hydra creature tokens.
4. The Hydras enter the battlefield and die as a state-based action due to having 0 toughness.
5. Faces of the Past trigger twice.
6. Resolve the first trigger, untapping all Hydras.
7. Activate Zaxara by tapping it, adding .
8. Resolve the second Faces of the Past trigger, untapping all Hydras.
9. Resolve Wurmcalling, creating a 0/0 Wurm creature token and returning Wurmcalling to your hand.
10. The Wurm enters the battlefield and dies as a state-based action due to having 0 toughness.
11. When the Wurm dies, Faces of the Past triggers, either tapping or untapping all Wurms.
12. Repeat.

This ingenious loop turns Zaxara, the Exemplary into a mana-generating engine by casting Wurmcalling over and over with its buyback cost, fueled by the exact mana Zaxara produces. Because Wurmcalling has an {X} in its mana cost, Zaxara triggers upon casting it, creating Hydra tokens that are immediately doubled by Primal Vigor and then promptly perish as 0/0 state-based casualties. Each of those deaths wakes up Faces of the Past, whose triggered ability untaps all untapped creatures sharing a creature type—meaning your fallen Hydras and the similarly doomed Wurm tokens created by Wurmcalling's resolution keep Zaxara refreshed and ready to tap for mana again.