Rookie Mistake is a Common Instant card from the Core Set 2021 set, identified by set code M21 and card number 66. The card has a mana cost of {U}, a mana value of 1, and colors of U. It features a normal layout and is illustrated by Zoltan Boros.
2020 • Magic: The Gathering • Core Set 2021
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| Condition | Value | Source | Trend | Price Details |
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$0.05 | Guide Estimate | 0% | ||
Raw / Ungraded
TCGplayer Market (reference) · Guide Estimate evidence · captured Oct 12, 2026
Rookie Mistake is a Magic: The Gathering trading card game card. It is an Instant with a mana cost of {U} and a mana value of 1. The card belongs to the Core Set 2021 set (M21) and holds a Common rarity. It is card number 66 in the set, features a normal layout, and is illustrated by Zoltan Boros.
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The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
The core identity of the card within the set.
The subject, team, league, and sport context tied to this card.
Featured
Rookie Mistake
Game
Magic: The Gathering
Rarity, print treatment, and game-specific stats for this card.
Common
Zoltan Boros
Card Stock
English
{U}
Instant
U
Abilities, attacks, oracle text, and flavor text printed on the card.
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."
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