Duchess, Wayward Tavernkeep + Crime Novelist + Quest for Pure Flame + Ingenious Artillerist

Prerequisites

• A permanent you control has a removable quest counter on it.

Steps

1. 1Activate Duchess by paying and removing a quest counter from a permanent you control, creating a Junk token.
2. 2When the Junk enters, Ingenious Artillerist triggers, dealing 1 damage to each opponent.
3. 3Quest for Pure Flame triggers, putting a quest counter on it.
4. 4Activate the Junk by tapping and sacrificing it.
5. 5Crime Novelist triggers, adding and putting a +1/+1 counter on it.
6. 6Resolve the Junk's ability, exiling the top card of your library with the ability to play it until end of turn.
7. 7Repeat.

Effects

• Exile your library with the ability to play the exiled cards until end of turn
• Infinite +1/+1 counters on a creature
• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite damage