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Target creature's owner puts it on their choice of the top or bottom of their library. You create a Mutagen token. (It's an artifact with " 1 generic mana , tap , Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery.")
"We strike hard and fade away into the night." —Leonardo
Rulings (2)
Mutagen tokens are a kind of predefined token. Each one is a colorless artifact with the artifact subtype Mutagen and the ability " 1 generic mana , tap , Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery."
Jan 27, 2026
Some spells and abilities that create Mutagen tokens require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. The Mutagen token won't be created.
Jan 27, 2026
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