How it works
Prerequisites
- An opponent controls a creature.
- You have a way to cause a white creature to enter the battlefield under your control.
Steps
- 1Cause a white creature to enter the battlefield under your control.
- 2Intruder Alarm and Court Street Denizen trigger.
- 3Resolve the Intruder Alarm trigger, untapping all creatures.
- 4Holding priority, activate Ashnod's Altar by sacrificing the white creature, adding .
- 5Resolve the Court Street Denizen trigger, tapping an opponent's creature.
- 6Hylda of the Icy Crown triggers, causing you to pay to create a 4/4 Elemental creature token.
- 7Repeat from step 2.
- 8Once you have infinite mana, you may forego sacrificing the Elemental tokens.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?