Infinite copies of instant or sorcery spells you castInfinite creature tokensInfinite creature ETBInfinite magecraft triggersInfinite mana creatures you control can produceInfinite untap of creatures
How it works
Cast any instant or sorcery by paying its mana cost.
Sedgemoor Witch triggers, creating a 1/1 Pest creature token.
The Pest enters the battlefield, triggering Intruder Alarm, untapping all creatures.
Activate all mana-producing creatures you control by tapping them, adding at least .
Activate the creature with Dual Casting attached by paying and tapping it, copying the instant or sorcery spell you cast.