Altaïr, Brotherhood Mentor

Kelsien, the Plague

2 printings · from $2.51 to $14.38 · pictured: Secret Lair Drop #1558

$11.99

cheapest of 16 store offers · see all

market $14.38

Mana cost: {R}{W}{B}

Type: Legendary Creature — Human Assassin

Commonly played as: Removal, Burn

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.

Artist: Dan Watson

Released: 2024-06-24

Market price

  • TCGplayer: $14.38
  • Cardmarket foil (converted): $19.35
  • Cardmarket: €13.88
  • Cardmarket foil: €17.48
  • MTGO tix: 0
$19.64$13.32
234 days of daily prices for Altaïr, Brotherhood Mentor: $13.39 to $14.38
2026-01-252026-11-13
regular foil · 234 days tracked · $13.39 → $14.38 (+7%) · low $13.32 · high $19.64
Daily USD snapshots; a flat stretch is a day with no new price recorded.

Store prices

The 3 cheapest per condition and finish, in stock at the last check. Offers not re-confirmed within 60 days are not shown. Prices in different currencies are compared at the current exchange rate.

StoreConditionFinishPriceChecked
Card KingdomNM · todayNMregular$11.99today
ManaPoolNM · foil · todayNMfoil$13.19today
CardTraderSP · 5 days agoSPregular€12.495 days ago
Card KingdomNM · foil · todayNMfoil$13.99today
Face To Face GamesNM · foil · 2 days agoNMfoilCA$19.992 days ago
ManaPoolSP · foil · todaySPfoil$14.30today
ManaPoolNM · todayNMregular$14.33today
ManaPoolMP · todayMPregular$15.10today
ManaPoolSP · todaySPregular$15.15today
CardmarketNM · todayNMregular€13.88today
CardTraderSP · foil · 5 days agoSPfoil€16.175 days ago

Truncated: 5 further offers are available at a higher price in the same conditions, out of 16 in total.

Format legality

  • standard: not legal
  • pioneer: not legal
  • modern: not legal
  • legacy: legal
  • vintage: legal
  • commander: legal
  • pauper: not legal
  • brawl: not legal

In Gestic collections

  • Held in 28 lists
  • Played in 2 decks

Decks that play this card

Browse all decks

All printings

Set#RarityUSD
Secret Lair Drop#1558 · mythic1558mythic$14.38
Commander 2020#11 · mythic11mythic$2.51