---
name: "Rookie Mistake"
mana_cost: "{U}"
cmc: 1
type_line: "Instant"
colors: ["U"]
color_identity: ["U"]
keywords: []
set: "M21"
set_name: "Core Set 2021"
collector_number: "66"
rarity: "common"
artist: "Zoltan Boros"
oracle_id: "e51680d1-3e6c-4d1b-9705-36f73d7328cf"
canonical_url: "https://avascry.com/printing/rookie-mistake-m21"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "legal"
  penny: "legal"
---

# Rookie Mistake
- **Mana Cost:** `{U}` (CMC: 1)
- **Type:** Instant

## Oracle Text
Until end of turn, target creature gets +0/+2 and another target creature gets -2/-0.

> *« Ne reste pas planté sur tes genoux quand tu frappes ! Relève-toi et réessaie. »*

## Top 4096-Dim Neural Synergies
1. [Steal Strength](/printing/steal-strength-pcy.md) — Instant
2. [Leeching Bite](/printing/leeching-bite-nph.md) — Instant
3. [Schismotivate](/printing/schismotivate-gpt.md) — Instant
4. [Skulduggery](/printing/skulduggery-otj.md) — Instant
5. [Consume Strength](/printing/consume-strength-ddm.md) — Instant
6. [Mabel's Mettle](/printing/mabels-mettle-blb.md) — Instant

## Printing Details
- **Set:** Core Set 2021 (M21) #66
- **Rarity:** Common
- **Artist:** Zoltan Boros
- **Total Printings:** 11 across all historical editions

## Format Legalities
Commander: `legal` | Standard: `not_legal` | Modern: `legal` | Pioneer: `legal` | Legacy: `legal` | Vintage: `legal` | Pauper: `legal` | Penny: `legal`