Kitsa, Otterball Elite + Ashnod's Altar + Intruder Alarm + Manifest Dread

Prerequisites

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Steps

1. 1Cast Manifest Dread by paying its mana cost.
2. 2Kitsa's prowess ability triggers, giving it +1/+1 until end of turn.
3. 3Holding priority, activate Kitsa's second ability by paying and tapping it, copying Manifest Dread.
4. 4Resolve the copy of Manifest Dread, causing you to put a card from your library onto the battlefield face-down as a 2/2 creature.
5. 5When the creature enters, Intruder Alarm triggers, untapping all creatures.
6. 6Holding priority, activate Ashnod's Altar by sacrificing the face-down creature, adding .
7. 7Repeat from step 3

Effects

• Infinite self-mill
• Near-infinite creature ETB
• Near-infinite creature LTB
• Near-infinite creature sacrifice triggers
• Near-infinite death triggers
• Near-infinite magecraft triggers
• Near-infinite untap of all creatures