Breath of Fury + Maelstrom Wanderer + Ancient Gold Dragon
Breath of Fury
Maelstrom Wanderer
Ancient Gold Dragon
Infinite creature ETBInfinite creature LTBInfinite combat damageInfinite combat phasesInfinite death triggersInfinite creature tokens with hasteInfinite mana creatures you control can produceInfinite creature sacrifice triggersInfinite untap of creatures you control
How it works
Deal combat damage using the creature that has Breath of Fury attached and Ancient Gold Dragon, triggering Breath of Fury and Ancient Gold Dragon.
Resolve the Ancient Gold Dragon trigger, creating at least one creature token.
Resolve the Breath of Fury trigger, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to a creature token, then causing you to untap all creatures you control and to get an additional combat phase after this one.
Repeat each combat phase.
This engine takes off once Maelstrom Wanderer grants haste to your entire board, allowing your attackers to immediately capitalize on the additional combat phases generated by Breath of Fury. When Ancient Gold Dragon connects with a player, its combat damage trigger floods the board with flying tokens, providing the expendable bodies needed to keep the loop going. Breath of Fury attaches itself to one of these newly created tokens, sacrificing it upon dealing damage only to untap all your creatures, trigger the next combat phase, and leap onto the next token in line.