Audacious Reshapers + Mortuary + Intruder Alarm + Parasitic Strix

Audacious Reshapers

Mortuary

Intruder Alarm

Parasitic Strix

How it works

1. Activate Audacious Reshapers by tapping it and sacrificing Parasitic Strix.
2. When Parasitic Strix dies, Mortuary triggers, putting Parasitic Strix on top of your library from your graveyard.
3. Resolve the Audacious Reshapers ability, revealing Parasitic Strix from the top of your library, then putting it onto the battlefield and dealing 1 damage to you.
4. When Parasitic Strix enters the battlefield, it and Intruder Alarm trigger.
5. Resolve the Intruder Alarm trigger, untapping all creatures.
6. Resolve the Parasitic Strix trigger, causing you to gain 2 life and for target opponent to lose 2 life.
7. Repeat.

This cunning loop turns your deck into a reliable executioner by leaning entirely on a deterministic search. You tap Audacious Reshapers to sacrifice Parasitic Strix, which immediately triggers Mortuary to place that very same Parasitic Strix right back on top of your library so the Reshapers are guaranteed to find it. Once the Reshapers put it onto the battlefield, Intruder Alarm springs to life to untap your creatures—including the Reshapers themselves—so you can repeat the process indefinitely. Meanwhile, Parasitic Strix effortlessly drains your opponent's life total to zero with every single iteration.