Aggravated Assault + Kormus Bell + Urborg, Tomb of Yawgmoth

3-card combo · R

Verdict

Yes — this 3-card loop generates infinite combat phases and infinite mana as long as your lands tap for 4RR collectively.

Cards required: 3
Cheapest stack total: $97.04
Color identity: R
Popularity: 39 decks
Format: Commander

Buy required cards on TCGplayer

Kormus Bell turns every swamp into a 1/1 creature; Urborg, Tomb of Yawgmoth makes every land a swamp, so the entire land base becomes a creature mana base that untaps with Aggravated Assault. Paying 3RR each loop refunds itself from the untapped lands-as-creatures and nets forward, making every subsequent activation free.

Recipe

How it works

Prerequisites

Lands and creatures you control can tap to produce at least .

Steps

Activate all mana producing lands and creatures you control by tapping them, adding at least .
Activate Aggravated Assault by paying , untapping all creatures you control and getting an additional combat and main phase after this phase.
Repeat.

Result

Infinite combat phases; Infinite mana creatures you control can produce; Infinite mana lands you control can produce

Variations

Cheaper, tighter, alternate lines

Savage Ventmaw and Aggravated Assault is a tighter 2-card line in red-green that skips the Urborg dependency entirely — drop the Bell package if the deck can splash green. In the Kormus Bell build, any repeatable haste enabler like Fires of Yavimaya or Mass Hysteria is mandatory, since the land-creatures enter without haste and the loop stalls on the first turn they hit the battlefield.