Xira, the Golden Sting + Breath of Fury + Concordant Crossroads

Prerequisites

• Breath of Fury attached to any other creature you control with an egg counter on it.
• You control at least one additional creature.
• An opponent cannot block and kill creatures you control.

Steps

1. 1Declare Xira and the creature with Breath of Fury attached as attackers.
2. 2Xira triggers, putting an egg counter on any other creature you control.
3. 3Deal combat damage to an opponent using the creature with Breath of Fury attached and Xira.
4. 4Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to any other creature you control with an egg counter on it, then causing you to untap all creatures you control and to get an additional combat phase after this one.
5. 5When the creature that had Breath of Fury attached dies, Xira triggers, causing you to draw a card and create a 1/1 Insect creature token.
6. 6Repeat each combat phase.

Effects

• Infinite card draw
• Infinite draw triggers
• Near-infinite combat damage
• Near-infinite combat phases
• Near-infinite creature ETB
• Near-infinite creature LTB
• Near-infinite creature sacrifice triggers
• Near-infinite death triggers