Mortuary + Pitiless Plunderer + Goblin Bombardment + Benjamin Sisko, Besieged

Mortuary

Pitiless Plunderer

Goblin Bombardment

Benjamin Sisko, Besieged

How it works

1. Activate Goblin Bombardment by sacrificing the nontoken creature.
2. When the creature dies, Mortuary and Pitiless Plunderer trigger.
3. Resolve the Mortuary trigger, putting the creature from your graveyard onto the top of your library.
4. Resolve the Pitiless Plunderer trigger, creating a Treasure token.
5. Resolve the Goblin Bombardment ability.
6. Activate the Treasure by tapping and sacrificing it, adding one mana of any color.
7. Cast the creature from the top of your library by paying its mana cost
8. Repeat.

This loop transforms any creature into a self-sustaining engine of destruction, fueled entirely by the card-advantage engine of Benjamin Sisko, Besieged, which turns the top of your library into a ready hand. When you sacrifice a creature to Goblin Bombardment, Pitiless Plunderer immediately generates the mana you need via a freshly minted Treasure token. At the same time, Mortuary quietly intercepts the fallen creature on its way to the graveyard, placing it right back on top of your library where Benjamin Sisko, Besieged allows you to recast it. You can repeat this sequence indefinitely, converting a single creature into endless damage, deaths, and artifact sacrifices.