Magic: The Gathering · Core Set 2021
Rookie Mistake
French name: Erreur de débutant
Rookie Mistake (Core Set 2021 66) has a market price of US$0.06 to US$0.33 as of Nov 9, 2026.
Price guide
The market price on TCGplayer, in US dollars: a guide, not an offer.
Market price
As of Nov 9, 2026 · The market price is TCGplayer’s, in US dollars. It is a guide, not an offer.
Card details
- Type
- Instant
- Mana cost
- {U}
- Artist
- Zoltan Boros
Card text
Until end of turn, target creature gets +0/+2 and another target creature gets -2/-0.
Flavour text
“Stop locking your knees as you strike! Now stand up and try again."
About this card
Rookie Mistake is card 66 in Core Set 2021, a Magic: The Gathering set released Jul 3, 2020. Rarity: Common. Finishes: Foil, Normal. Illustrated by Zoltan Boros. Reference market price on Nov 9, 2026: US$0.33 (Foil), US$0.06 (Normal). Over the last 30 days, the Foil price went down 5.7%. Source: TCGplayer market data via tcgcsv.com, updated daily. A reference price is not an offer.
