Cavalier of Night + Glasspool Mimic // Glasspool Shore + Ashnod's Altar

Cavalier of Night

Glasspool Mimic // Glasspool Shore

Ashnod's Altar

How it works

1. Activate Ashnod's Altar by sacrificing Glasspool Mimic, adding CC.
2. When Glasspool Mimic dies, its second ability triggers, returning itself to the battlefield as a copy of Cavalier of Night.
3. When Glasspool Mimic enters the battlefield, its first ability triggers, choose not to sacrifice a creature.
4. Repeat.