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Kelsien, the Plague
WBRMarduLegendary Creature — Human Assassin

Kelsien, the Plague

Mana value3Rank#7,820
BuildCard details

The Commander

Vigilance, haste

Kelsien gets +1/+1 for each experience counter you have.

{T}: Kelsien deals 1 damage to target creature you don't control. When that creature dies this turn, you get an experience counter.

Guide

Gameplan

Kelsien grinds the board by tapping to ping creatures, and when those creatures die you bank experience counters that permanently grow him into a lethal voltron threat. You play removal-heavy control, picking off small creatures and using deathtouch or damage amplifiers to turn his ping into repeatable kill-anything removal, then close with commander damage. Build toward untap effects and ping-doublers to snipe multiple creatures each turn while starving opponents of board presence.

Strengths

  • Repeatable creature removal in the command zone that scales as the game goes long
  • Experience counters are permanent, so Kelsien grows unboundedly and survives most board wipes via recast
  • Excellent against creature-heavy and token decks, acting as a pillow-fort grinder
  • Vigilance + haste lets him attack and still hold up his tap ability for defense

Weaknesses

  • His ability only hits creatures, leaving him soft to planeswalker, artifact, and pure spell-based combo decks
  • Removal-reliant and slow to develop a board, so he can fall behind go-wide or burst strategies
  • Loses tempo and counters if he's repeatedly killed without protection
  • Needs payoff pieces (deathtouch/untap) to threaten big creatures, or his single ping is too small

Key Cards

  • Basilisk Collar — Grants deathtouch and lifelink so Kelsien's 1 damage ping kills any creature and gains you life.
  • Quietus Spike — Deathtouch plus a damage trigger turns his ping and combat into instant kills and life loss.
  • Thousand-Year Elixir — Untaps Kelsien so you can ping twice a turn, doubling kills and experience gains.
  • Magewright's Stone — Cheap repeatable untap to fire Kelsien's tap ability again each turn.
  • City of Brass — Mana fixing is critical in a three-color removal deck that wants colored mana every turn.
  • Heartless Hidetsugu — With deathtouch Kelsien snipes any creature, but more broadly the deck rewards damage-doubling effects.

Upgrade Path

Add fast mana and untap enablers (Thousand-Year Elixir, Magewright's Stone, Umbral Mantle) so Kelsien removes multiple creatures per turn and snowballs counters faster. Lean into deathtouch sources (Basilisk Collar, Gorgon Flail) plus protection like Swiftfoot Boots to make his ping kill anything while keeping him alive. Round out with efficient interaction (Swords to Plowshares, Anguished Unmaking) and a tight mana base of fetches and duals to support the demanding three-color costs.

Core Cards

The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.

Win Conditions

  • ▸Commander damage from a heavily-buffed, deathtouch-equipped Kelsien
  • ▸Grinding the board to dust then winning with a single unanswered threat
  • ▸Combat damage doublers (Gratuitous Violence, Furnace of Rath) turning pings into kills and reach
  • ▸Aristocrats drains (Blood Artist, Bastion of Remembrance) off the creatures you kill

Archetypes

  • Stax/Control — Repeatable creature removal lets Kelsien police the board and lock out creature strategies.
  • Voltron — Growing experience counters make Kelsien a one-hit commander-damage threat with equipment.
  • Aristocrats — Creature deaths fuel experience counters and synergize with sacrifice and death-payoff cards.
  • Pingers/Damage Doublers — Untap and damage-amplification effects multiply Kelsien's removal output each turn.

Combos

No combos found for this commander on Commander Spellbook.

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