Rookie Mistake
~$0.06 low · ~$0.35 high
Blue. Instant
Core Set 2021 #66 · Illustrated by Zoltan Boros
Core Set 2021 #66 · Illustrated by Zoltan BorosWhat is Rookie Mistake worth?
TCGplayer, eBay and Amazon links are affiliate links. We may earn a commission if you buy.
TCGplayer market prices in USD, updated October 14, 2026. Each price is for one printing and one finish.
Oracle text
Until end of turn, target creature gets +0/+2 and another target creature gets -2/-0.
"Stop locking your knees as you strike! Now stand up and try again."
Format legality
The only printing of Rookie Mistake
| Printing | Rarity | Non-foil | Foil | Cardmarket (EUR) | My collection |
|---|---|---|---|---|---|
 Core Set 2021 m21 #66· 2020common· Cardmarket €0.07 · €0.10 foil | common | $0.06 | $0.35 | €0.07€0.10 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 Rookie Mistake
As an Amazon Associate we earn from qualifying purchases. We also take part in the TCGplayer (via Impact) and eBay Partner Network affiliate programs. Links to TCGplayer, eBay and Amazon are affiliate links: if you buy through them we may earn a commission at no extra cost to you. Cardmarket links are not affiliate links.
Card details
- First printed
- 2020
- Printings
- 1
- Mana value
- 1
- EDHREC rank
- #28,512 on EDHREC (Commander popularity)
- Artist
- Zoltan Boros
What the codes mean
The small print at the bottom of the Core Set 2021 card (#66).
066 · M21 · C · EN
- 066Collector number: this card's place in the set list. Main-set cards print it over the set's card count.
- M21Set code for Core Set 2021
- CCommon
- ENPrinted in English
How to read a Magic card: every part and code, on real cards.
Rulings (2)
2020-06-23
You can't cast Rookie Mistake unless you choose two creatures as targets.
2020-06-23
If one target creature becomes an illegal target before Rookie Mistake resolves, the other is affected as appropriate.
Browse more: Core Set 2021 · all sets · search cards