Urza, Prince of Kroog + Grim Monolith + Mondrak, Glory Dominus + Lightning Greaves

4-card combo · WU

Verdict

Yes — this 4-card loop generates infinite artifact creature tokens and infinite ETB triggers in any Urza, Prince of Kroog shell that can assemble the pieces.

Cards required

Cheapest stack total

$0.72

Color identity

Popularity

24 decks

Format

Commander

Buy required cards on TCGplayer

Urza, Prince of Kroog costs 6 to activate and creates two token copies of Grim Monolith; Mondrak, Glory Dominus doubles that output to four. Lightning Greaves equips for free, haste-enabling each new Grim Monolith token so it can tap immediately for the three colorless needed to feed the next Urza activation. The combo runs entirely on the mana the tokens produce, making it self-sustaining once all four permanents are live.

How it works

Prerequisites

—

Steps

Activate Grim Monolith's first ability by tapping it, adding .
Activate Urza by paying , creating two token copies of Grim Monolith that are 1/1 Soldiers in addition to their other types.
Activate Lightning Greaves' equip ability by paying , attaching it to a Grim Monolith token.
Activate the Grim Monolith token's first ability by tapping it, adding .
Repeat from step 3 using the other Grim Monolith token.
Repeat from step 2.

Result

Infinite ETB; Infinite tapped creature tokens

Cheaper, tighter, alternate lines

Without Mondrak, Glory Dominus the loop collapses — two tokens produce six mana, exactly enough for one Urza activation, leaving nothing to reinvest, so Mondrak is load-bearing, not optional. Walking Ballista or Altar of Dementia closes the game once tokens go infinite; the loop itself only makes bodies and ETB triggers, so a payoff outside the four pieces is mandatory.

Urza, Prince of Kroog + Grim Monolith + Mondrak, Glory Dominus + Lightning Greaves

How it works

Cheaper, tighter, alternate lines

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