Breath of Fury + Spellbinder + You See a Pair of Goblins + Mass Hysteria
Breath of Fury
Spellbinder
You See a Pair of Goblins
Mass Hysteria
Infinite combat damageInfinite combat phasesInfinite death triggersInfinite creature ETBInfinite creature LTBInfinite magecraft triggersInfinite mana creatures you control can produceInfinite creature sacrifice triggersInfinite storm countInfinite untap of creatures you controlInfinite creature tokens with haste
How it works
Deal combat damage to an opponent using the creatures that have Spellbinder and Breath of Fury attached.
Spellbinder and Breath of Fury trigger.
Resolve the Spellbinder trigger, casting a copy of You See a Pair of Goblins without paying its mana cost.
Resolve the copy of You See a Pair of Goblins, creating two 1/1 Goblin creature tokens.
Resolve the Breath of Fury trigger, causing you to sacrifice the creature it is attached to, attach Breath of Fury to a Goblin token, untap all creatures you control and get an additional combat phase after this one.