Cosi's Trickster
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Magic: The Gathering
Mana cost
ZendikarZEN · #45
- Card type
- Creature — Merfolk Wizard
- Rarity
- Rare
- Indicative price
- 0.46 € · ★ 2.19 € · 0.50 $ · ★ 2.67 $
- Mana value
- 1
- Power
- 1
- Toughness
- 1
- Colour
- Blue
Card text
Whenever an opponent shuffles their library, you may put a +1/+1 counter on this creature.
Format legality
- CommanderLegal
- DuelLegal
- LegacyLegal
- ModernLegal
- OathbreakerLegal
- PennyLegal
- PredhLegal
- VintageLegal
Legalities follow the imported catalogue; check format rules before a tournament.
Data imported on 2026-10-06 (UTC).
Indicative Scryfall prices, updated daily. ★: foil; ★ E: etched foil. EUR and USD represent different markets.
Printing information
- Illustrator
- Igor Kieryluk
- Card language
- English
- Release date
- 2009-10-02
Flavour text
She watches the chaos created by the Roil, seeking strength in the patterns of anarchy.
Rulings
Cosi’s Trickster’s ability triggers when an opponent shuffles their library because that player was instructed to do so by a spell or ability that specifically contains the word “shuffle” in its text or (in the case of a keyword ability) in its rules.
If an opponent’s library is empty or has just a single card in it when a spell or ability instructs that player to shuffle their library, Cosi’s Trickster’s ability will still trigger.
The cascade ability doesn’t cause a player to shuffle their library, even if that player revealed their entire library. The revealed cards are put on the bottom of their owner’s library in a random order, but they’re not “shuffled.”