Geralf, the Fleshwright + Pitiless Plunderer + Ebondeath, Dracolich + Urza's Incubator + Phantom Train

Geralf, the Fleshwright

Pitiless Plunderer

Ebondeath, Dracolich

Urza's Incubator

Phantom Train

How it works

1. Cast Ebondeath from your graveyard by paying .
2. Geralf's first ability triggers, creating a 2/2 Zombie Rogue creature token.
3. When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on the Zombie Rogue equal to the number of other Zombies that entered the battlefield under your control.
4. When Ebondeath enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on Ebondeath equal to the number of other Zombies that entered the battlefield under your control.
5. Activate Phantom Train twice by sacrificing the Zombie Rogue and Ebondeath.
6. When the Zombie Rogue and Ebondeath die, Pitiless Plunderer triggers twice, creating two Treasure tokens.
7. Resolve both Phantom Train abilities.
8. Activate the Treasures by tapping and sacrificing them, adding .
9. Repeat.

This ingenious loop turns Ebondeath, Dracolich and a fresh Zombie Rogue token from Geralf, the Fleshwright into a self-sustaining engine of undeath, fueled every step of the way by the mana-generating power of Pitiless Plunderer. While Urza's Incubator isn't strictly necessary for the core loop to close its mana loop, it significantly eases the casting costs involved, allowing Phantom Train to effortlessly devour your creatures for parts and feed the cycle anew. As each creature hits the graveyard, Pitiless Plunderer converts their demise into the exact mana needed to replay Ebondeath from the graveyard, letting Geralf continuously flood the board with growing tokens and counters.