Intruder Alarm + Stonybrook Schoolmaster + Drowner of Secrets

Prerequisites

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Steps

1. 1Activate Drowner of Secrets by tapping Stonybrook Schoolmaster.
2. 2Stonybrook Schoolmaster triggers, creating a 1/1 Merfolk Wizard creature token.
3. 3When the Merfolk Wizard enters the battlefield, Intruder Alarm triggers, untapping all creatures.
4. 4Resolve the Drowner of Secrets ability, causing a player to mill a card.
5. 5Repeat.

Effects

• Infinite creature ETB
• Infinite creature tokens
• Infinite mana creatures you control can produce
• Infinite mill
• Infinite self-mill
• Infinite untap of creatures