Traveling Plague + Phyrexian Altar + Ajani's Chosen

Traveling Plague

Phyrexian Altar

Ajani's Chosen

How it works

1. Cast Traveling Plague by paying 3, attaching it to another creature you control.
2. When Traveling Plague enters, Ajani's Chosen triggers, creating a creature token.
3. Activate Phyrexian Altar by sacrificing the creature Traveling Plague is attached to.
4. When the creature dies, Traveling Plague triggers, returning itself from your graveyard to the battlefield attached to the token created in step 2.
5. When Traveling Plague enters, Ajani's Chosen triggers, creating a creature token.
6. Repeat from step 3.

This loop creates an infinite sacrifice engine by turning the tragic progression of Traveling Plague into a self-sustaining cycle. Whenever you sacrifice the host creature to Phyrexian Altar for mana, the Aura's own trigger returns it directly to the battlefield. Because Ajani's Chosen is watching for enchantments, every re-entry generates a fresh 2/2 Cat token ready to catch the falling enchantment and feed the Altar all over again.