Screams from Within + Warehouse Tabby

Screams from Within

Warehouse Tabby

How it works

1. Cast Screams from Within by paying 1, attaching it to another creature with toughness equal to 1.
2. The creature dies as a state-based action due to having zero toughness, triggering Warehouse Tabby and Screams from Within.
3. Resolve the Warehouse Tabby trigger, creating a 1/1 Rat creature token.
4. Resolve the Screams from Within trigger, returning it from your graveyard to the battlefield attached to the Rat.
5. Repeat from step 2.

This recursive loop turns a simple aura into an endless engine of sacrifice by exploiting Warehouse Tabby's ability to trigger whenever an enchantment you control hits the graveyard. When you cast Screams from Within on a creature with 1 toughness, state-based actions immediately send it to the graveyard, which simultaneously triggers the Aura's own return-to-the-battlefield ability and spawns a 1/1 Rat token courtesy of the Tabby. Screams from Within then reattaches itself right back to that brand-new Rat, instantly shrinking its toughness to zero and sending it packing to the graveyard to restart the whole cycle. Because Screams from Within keeps recycling itself off every single death, you get infinite death triggers, entry-the-battlefield events, and leave-the-battlefield triggers without spending any additional mana.