Bloodthirsty Conqueror + Arcbond + Twincast

Bloodthirsty Conqueror

Arcbond

Twincast

How it works

1. Cast Arcbond by paying 2, targeting Bloodthirsty Conqueror.
2. Holding priority, cast Twincast by paying its mana cost, copying Arcbond, with the copy targeting another indestructible creature you control.
3. Resolve both Arcbonds.
4. Deal damage to Bloodthirsty Conqueror.
5. Arbond triggers, dealing that much damage to each player and each other creature.
6. Bloodthirsty Conqueror triggers for each opponent dealt damage, and Arcbond triggers due to the other indestructible creature being dealt damage.
7. Resolve all Bloodthirsty Conqueror triggers, causing you to gain life.
8. Resolve the Arcbond trigger, dealing that much damage to each player and each other creature.
9. Bloodthirsty Conqueror triggers for each opponent dealt damage, and Arcbond triggers due to Bloodthirsty Conqueror being dealt damage.
10. Resolve all Bloodthirsty Conqueror triggers, causing you to gain life.
11. Resolve the Arcbond trigger, dealing that much damage to each player and each other creature.
12. Repeat form step 6.

This vicious feedback loop centers on Bloodthirsty Conqueror, whose life-gain triggered ability creates a perpetual engine whenever an opponent loses life. By casting Arcbond on the Conqueror—and duplicating it with Twincast so that a second creature shares the curse—any initial spark of damage to your Bloodthirsty Conqueror triggers a chain reaction. The resulting damage to each player and creature causes your opponents to lose life, which instantly feeds back into the Conqueror to gain you life and keep the Arcbond triggers looping infinitely until your table is reduced to ash.