Infinite self-mill, Near-infinite ETB, Near-infinite LTB, Near-infinite death triggers, Near-infinite magecraft triggers, Near-infinite sacrifice triggers, Near-infinite untap of all creatures
Cast Break Down the Door by paying its mana cost.
Kitsa's prowess ability triggers, giving it +1/+1 until end of turn.
Holding priority, activate Kitsa's second ability by paying and tapping it, copying Break Down the Door.
Resolve the copy of Break Down the Door, causing you to put a card from your library onto the battlefield face-down as a 2/2 creature.
When the creature enters, Intruder Alarm triggers, untapping all creatures.
Holding priority, activate Ashnod's Altar by sacrificing the
Component Cards
How It Works
Cast Break Down the Door by paying its mana cost.
Kitsa's prowess ability triggers, giving it +1/+1 until end of turn.
Holding priority, activate Kitsa's second ability by paying and tapping it, copying Break Down the Door.
Resolve the copy of Break Down the Door, causing you to put a card from your library onto the battlefield face-down as a 2/2 creature.
When the creature enters, Intruder Alarm triggers, untapping all creatures.
Holding priority, activate Ashnod's Altar by sacrificing the face-down creature, adding .
Repeat from step 3



