Cast Arcbond by paying 2, targeting Bloodthirsty Conqueror.
Holding priority, cast Reiterate by paying its mana cost, copying Arcbond, with the copy targeting another indestructible creature you control.
Resolve both Arcbonds.
Deal damage to Bloodthirsty Conqueror.
Arbond triggers, dealing that much damage to each player and each other creature.
Bloodthirsty Conqueror triggers for each opponent dealt damage, and Arcbond triggers due to the other indestructible creature being dealt damage.
Resolve all Bloodthirsty Conqueror triggers, causing you to gain life.
Resolve the Arcbond trigger, dealing that much damage to each player and each other creature.
Bloodthirsty Conqueror triggers for each opponent dealt damage, and Arcbond triggers due to Bloodthirsty Conqueror being dealt damage.
Resolve all Bloodthirsty Conqueror triggers, causing you to gain life.
Resolve the Arcbond trigger, dealing that much damage to each player and each other creature.
Repeat form step 6.
This ingenious loop turns a single ping of damage into an apocalyptic chain reaction by chaining together lifegain and board-wide destruction. The core engine is sparked by casting Arcbond targeting Bloodthirsty Conqueror, whose static ability ensures that every time any opponent takes damage from that reflection, you gain an equal amount of life. To keep this volatile reaction going without burning through your hand, Reiterate steps in with its buyback cost, allowing you to copy the instant and return it to your hand to recast it as needed. Because the damage hits each player and wraps back around through the Conqueror's life-draining triggers, the entire table is swept away in an endless loop of compounding blasts.