Cosi's Trickster
~$0.49 low · ~$2.67 high
Blue. Creature — Merfolk Wizard
Zendikar #45 · Illustrated by Igor Kieryluk
Zendikar #45 · Illustrated by Igor KierylukWhat is Cosi's Trickster worth?
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TCGplayer market prices in USD, updated October 14, 2026. Each price is for one printing and one finish.
Oracle text
Whenever an opponent shuffles their library, you may put a +1/+1 counter on this creature.
1/1
She watches the chaos created by the Roil, seeking strength in the patterns of anarchy.
Format legality
The only printing of Cosi's Trickster
| Printing | Rarity | Non-foil | Foil | Cardmarket (EUR) | My collection |
|---|---|---|---|---|---|
 Zendikar zen #45· 2009rare· Cardmarket €0.49 · €2.19 foil | rare | $0.49 | $2.67 | €0.49€2.19 foil |
Prices are TCGplayer market prices in USD for each printing and finish, via Scryfall. They are a guide, not an appraisal.
Where to buy Cosi's Trickster
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Card details
- First printed
- 2009
- Printings
- 1
- Mana value
- 1
- EDHREC rank
- #15,490 on EDHREC (Commander popularity)
- Artist
- Igor Kieryluk
What the codes mean
The small print at the bottom of the Zendikar card (#45).
45
- 45Collector number: this card's place in the set list. Main-set cards print it over the set's card count.
Cards from 1998 to mid-2014 print the collector number over the set's card count (like 90/383) next to the copyright line. They have no rarity letter, set code or language code: the set symbol and its colour show the set and rarity.
How to read a Magic card: every part and code, on real cards.
Rulings (3)
2009-10-01
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.”
2009-10-01
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.
2009-10-01
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.
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