Urborg, Tomb of Yawgmoth + Kormus Bell + Viridian Longbow + Thornbite Staff

4-card combo · C

Verdict

Yes — this 4-piece lock destroys every land opponents control and permanently denies any new ones that enter.

Cards required: 4
Cheapest stack total: $27.44
Color identity: C
Popularity: 16 decks
Format: Commander

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Urborg, Tomb of Yawgmoth makes all lands Swamps; Kormus Bell turns all Swamps into 1/1 creatures with no toughness to spare. Viridian Longbow deals 1 damage to any target, and Thornbite Staff untaps the equipped creature whenever a creature dies — so each land-creature pinged is a free reload, and every subsequent land entering triggers another kill shot.

Recipe

How it works

Prerequisites

Viridian Longbow and Thornbite Staff attached to the same creature you control without summoning sickness.

Steps

Whenever a land enters the battlefield, it enters as a 1/1 creature due to Urborg and Kormus Bell.
Activate the creature with Viridian Longbow and Thornbite Staff attached by tapping it, dealing 1 damage to the land.
The land dies as a state-based action due to having zero toughness.
The creature triggers, untapping itself.
Repeat as desired for each land an opponent controls, and whenever a land enters the battlefield under an opponent's control.

Result

Destroy all lands opponents control; Destroy all lands that enter the battlefield under an opponent's control; Lock; Mass Land Denial

Variations

Cheaper, tighter, alternate lines

Basilisk Collar replaces Viridian Longbow if deathtouch is available as a redundant kill condition, though the Longbow is the cleaner fit given the 1/1 toughness floor. Any creature that can equip both pieces works as the host, but indestructible or hexproof options like Darksteel Colossus or Sigarda, Host of Herons protect against the obvious answer of removing the creature to break the lock.