Metagross IV Compromise — How Far Can You Go in Master League?
💯 CP 4286 · L50 · 시즌 27 (2026.06.02~09.09) · 更新 2026-09-01
Got a Metagross you've been scraping XL for, and it didn't come out 100%? Before you power up — 30 seconds. We simulated the entire Master top 100 to see whether that spread is fine to build.
For Metagross, the IVs are tight, so a high catch is safest. Below is the result of running the Master top 100 through a battle simulator, plus the mirror and best buddy. (Hundo 1-shield record: 59W 41L.)
IV-tight — an effective hundo is safest. See the verdict below.
強化する？しない？ — 一目で
✅そのまま強化 · 15/15/15 (effective hundo)
This Pokémon is IV-tight — aim for an effective hundo (or very close).
⚠️条件付き · around 15/15/14
You start dropping Reshiram and similar. If you rarely face them (low real pick rate), it's fine to run.
❌強化せず待つ · Low IVs (multiple cuts)
You lose several key matchups. Unless you need it now, wait for a better spread.
攻撃15が必須の理由 — 同時発動(CMP)
攻撃種族値が優先度を決める。攻14は同種族値ライバルに必ず負けます。
vsミラー(グラードン対決) 自分 攻14 vs 相手 攻15
個体値ごとの判定（マスター実測シミュ）
| 個体値(攻/防/HP) | CP | HP | 判定 | 不利になる相手 |
|---|
| 15 / 15 / 15 | 4286 | 172 | 実質100 | なし |
| 14 / 15 / 15 | 4270 | 172 | 妥協 |  パルキア（オリジンフォルム）·シールド1 |
| 15 / 15 / 14 | 4276 | 171 | 妥協 |  レシラム·シールド0 マーシャドー·シールド0パルキア（オリジンフォルム）·シールド1 |
| 15 / 15 / 13 | 4265 | 170 | 妥協 | レシラム·シールド0マーシャドー·シールド0パルキア（オリジンフォルム）·シールド1 シャドウカイオーガ·シールド1 |
| 15 / 15 / 12 | 4255 | 169 | 妥協 | レシラム·シールド0マーシャドー·シールド0パルキア（オリジンフォルム）·シールド1シャドウカイオーガ·シールド1 ミュウツー·シールド2 |
| 15 / 14 / 15 | 4277 | 172 | 妥協 | マーシャドー·シールド0 |
| 15 / 14 / 14 | 4267 | 171 | 妥協 | レシラム·シールド0マーシャドー·シールド0パルキア（オリジンフォルム）·シールド1 |
| 15 / 14 / 13 | 4256 | 170 | 妥協 | レシラム·シールド0マーシャドー·シールド0パルキア（オリジンフォルム）·シールド1シャドウカイオーガ·シールド1ミュウツー·シールド2 |
| 15 / 13 / 14 | 4258 | 171 | 妥協 | レシラム·シールド0マーシャドー·シールド0パルキア（オリジンフォルム）·シールド1 サンダー·シールド1 |
| 15 / 13 / 13 | 4248 | 170 | 妥協 | レシラム·シールド0マーシャドー·シールド0パルキア（オリジンフォルム）·シールド1シャドウカイオーガ·シールド1サンダー·シールド1ミュウツー·シールド2 |
| 15 / 12 / 14 | 4249 | 171 | 妥協 | レシラム·シールド0マーシャドー·シールド0パルキア（オリジンフォルム）·シールド1シャドウカイオーガ·シールド1ミュウツー·シールド2 |
| 15 / 10 / 14 | 4231 | 171 | 妥協 | レシラム·シールド0マーシャドー·シールド0パルキア（オリジンフォルム）·シールド1 ムゲンダイナ·シールド1シャドウカイオーガ·シールド1ミュウツー·シールド2 シャドウライコウ·シールド2 |
Why attack 15 matters — CMP
Master League has no CP cap, so everyone is max level. When same-species (mirror) or same-stat Pokémon fire a charged move on the same turn, the higher effective attack goes first (CMP). An attack-14 Metagross loses that priority to an attack-15 opponent. In the sim, the attack-14 mirror came out 0-shield=loss, 1-shield=loss, 2-shield=loss. In a mirror-heavy meta, attack 15 is effectively mandatory.
Where win/loss starts to split
Metagross is IV-tight. Even dropping to 15/15/14 starts losing Reshiram. Across the full top-100 sim, small stat cuts cross breakpoints and flip matchups, so a high-IV catch is the safer play here.
Best Buddy — depends on whether the opponent is too
Best Buddy (level +1) depends on whether the opponent is best-buddied. Against a non-best-buddied opponent (L50) you newly win 4 matchups at 1 shield; against a best-buddied one (L51), 0. Top Master legendaries are usually best-buddied, so the mirror and same-stat rivals go back to a tie when both are L51. It never hurts, but it doesn't magically win the mirror.
Note that this line moves with the meta. If usage shifts or a new Pokémon arrives, the breakpoints move and a spread that's fine today can get shaky. This analysis is for 시즌 27 (2026.06.02~09.09); when the season changes we re-run the full top-100 sim and update it.
⭐ベストバディ(L51)効果BB CP 4337 · L51
妥協個体でもベストバディにすれば全対面が改善し、同種族値ライバルにも勝てます。
100%のシールド別成績
Bottom line — IV-tight, aim high. Based on the 시즌 27 (2026.06.02~09.09) meta; updated when the season changes.
よくある質問
Q. Do I need a hundo Metagross?
Metagross is IV-tight, so an effective hundo (or very close) is safest. From 15/15/14 you start losing Reshiram. That said, if those losses are low-pick-rate, the real impact may be small.
Q. Which stat should I prioritize?
From the full top-100 sim, the line 15/15/15 is safe; below it you begin losing Reshiram.
Q. How long does this hold?
It's the 시즌 27 (2026.06.02~09.09) meta. When the meta shifts, the breakpoints and the compromise line move, so we re-run the full top-100 sim each season and update it.
分析方法
この判定は、オープンソースのPvPoke対戦エンジンでマスターリーグ上位100種すべて、シールド0・1・2枚の全シナリオをシミュレートした結果です。100%個体と勝敗が変わる相手が一つもなければ「準100」、ステータス・CPまで同一なら「実質100」、勝敗を落とす相手が出れば「妥協」と表記しました。
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