Callidus Assassin

Callidus Assassin card image

Callidus Assassin: Creature - Human Shapeshifter Assassin, Warhammer 40,000 Commander. Printings, market prices, rulings, and format legality on Mana Grove.

Mana cost
{4}{U}{B}
Mana value
6
Type
Creature - Human Shapeshifter Assassin
Colour identity
Blue and black (UB)
Power / toughness
3/3
Rarity
Rare
Set
Warhammer 40,000 Commander (40K)
Released
2022-10-07
Collector number
109
Artist
Bryan Sola
Commander rank
6,145 (by how often it appears in Commander decks)
Keywords
Flash, Polymorphine

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About Callidus Assassin

Callidus Assassin is a Magic: The Gathering card, a rare blue and black creature from Warhammer 40,000 Commander (40K), a Commander product released in October 2022. It is collector number 109 in that set, with art by Bryan Sola. It costs {4}{U}{B} (four generic, one blue and one black mana) to cast, for a mana value of 6. It is a 3/3 creature. Its colour identity is blue and black. It is legal in Legacy, Vintage, Commander, Duel Commander and Oathbreaker. Warhammer 40,000 Commander is its only printing so far. The latest aggregated market price for this printing is $5.49 (normal finish, as of 2026-11-12).

Card text

Flash

Polymorphine - You may have this creature enter tapped as a copy of any creature on the battlefield, except it has "When this creature enters, destroy up to one other target creature with the same name as this creature."

Market price

Latest aggregated market price for the normal finish of this printing: $5.49 (as of 2026-11-12).

The figure covers this printing only; other printings carry their own price on their own page.

Format legality

Legality of Callidus Assassin by format. Formats in which it is not legal are not listed.

LegacyLegal
VintageLegal
CommanderLegal
Duel CommanderLegal
OathbreakerLegal

Other printings of Callidus Assassin

The other printings are listed newest first, with the rarity and release year of each.

PrintingRarityYear
Warhammer 40,000 Commander (40K) #109★Rare2022

Official rulings

Seven official rulings apply to Callidus Assassin, newest first.

  • Any enters-the-battlefield abilities of the copied creature will trigger when Callidus Assassin enters the battlefield. You get to choose the order of those abilities and the triggered ability it has due to its copy effect. Any "as [this creature] enters the battlefield" or "[this creature] enters the battlefield with" abilities of the chosen creature will also work.
  • Callidus Assassin copies exactly what was printed on the original creature (unless that creature is copying something else or is a token; see below) and it has the triggered ability. It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or any Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, or so on.
  • If Callidus Assassin somehow enters the battlefield at the same time as another creature, Callidus Assassin can't become a copy of that creature. You may choose only a creature that's already on the battlefield.
  • If the chosen creature is a token, Callidus Assassin copies the original characteristics of that token as stated by the effect that created the token. Callidus Assassin is not a token in this case.
  • If the chosen creature is copying something else (for example, if the chosen creature is another Callidus Assassin), then your Callidus Assassin enters the battlefield as whatever the chosen creature copied.
  • The triggered ability that Callidus Assassin has is part of its copy effect and is a copiable value that other effects may copy.
  • You can choose not to copy anything. In that case, Callidus Assassin enters the battlefield as a 3/3 creature. Notably, it does not have "When this creature enters the battlefield, destroy up to one other target creature with the same name as this creature."

Similar cards

Other creature cards with a blue and black colour identity, ranked by how often they appear in Commander decks.

In these precons

Callidus Assassin is in the decklist of these preconstructed Commander decks.

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