Remembrance + Mortuary + Goblin Bombardment + Phyrexian Walker

Remembrance

Mortuary

Goblin Bombardment

Phyrexian Walker

How it works

1. Activate Goblin Bombardment by sacrificing Phyrexian Walker.
2. When Phyrexian Walker dies, Mortuary and Remembrance trigger.
3. Resolve the Mortuary trigger, putting Phyrexian Walker from your graveyard on top of your library.
4. Resolve the Remembrance trigger, searching your library for Phyrexian Walker and putting it into your hand.
5. Resolve the Goblin Bombardment ability, dealing 1 damage to any target.
6. Cast Phyrexian Walker by paying 0.
7. Repeat.

This loop turns the zero-mana cost of Phyrexian Walker into a lethal weapon by exploiting a clever stacking of graveyard and library triggers. When you sacrifice the Walker to Goblin Bombardment, Mortuary instantly intercepts the card on its way to the graveyard to place it neatly on top of your library. At the very same time, Remembrance sniffs out that exact same demise to tutor another copy of the Walker straight from your library into your hand. Because Phyrexian Walker costs absolutely nothing to cast, you can redeploy it immediately, reload your ammunition, and repeat the entire cycle to unleash infinite damage upon any target.