Puppenspieler der Schatten

Fliegend, Abwehr {2}
Wenn die Puppenspieler der Schatten ins Spiel kommen, erzeuge zwei 1/1 schwarze Feenwesen-Räuber-Kreaturenspielsteine mit Flugfähigkeit.
Immer wenn eine fliegende Kreatur, die du kontrollierst, angreift, kannst du sie bis zum Ende des Zuges zusätzlich zu ihren anderen Farben und Typen zu einem roten Drachen mit Basis-Stärke und -Widerstandskraft 4/4 werden lassen.

影のくぐつ師

飛行、護法{2}
影のくぐつ師が戦場に出たとき、飛行を持つ黒の１/１のフェアリー・ならず者・クリーチャー・トークン２体を生成する。
あなたがコントロールしていて飛行を持つクリーチャー１体が攻撃するたび、「ターン終了時まで、それは他の色やタイプに加えて赤のドラゴンになり、基本のパワーとタフネスは４/４になる。」を選んでもよい。

Shadow Puppeteers

Flying, ward {2}
When this creature enters, create two 1/1 black Faerie Rogue creature tokens with flying.
Whenever a creature you control with flying attacks, you may have it become a red Dragon with base power and toughness 4/4 in addition to its other colors and types until end of turn.

Wilds of Eldraine Commander

Flying, ward {2}
When Shadow Puppeteers enters the battlefield, create two 1/1 black Faerie Rogue creature tokens with flying.
Whenever a creature you control with flying attacks, you may have it become a red Dragon with base power and toughness 4/4 in addition to its other colors and types until end of turn.

Effects that modify a creature's power and/or toughness, such as the one created by Squeak By or a +1/+1 counter, will apply to the creature no matter when they started to take effect.

If the creature loses flying before Shadow Puppeteers's last ability resolves, the creature will still become a red Dragon with base power and toughness 4/4 in addition to its other colors and types until end of turn. It won't gain flying.

If the creature stops being a creature before Shadow Puppeteers's last ability resolves, it will become red until end of turn in addition to its other colors. Since it's not a creature, it won't gain the Dragon subtype, and it won't have base power and toughness 4/4.

Shadow Puppeteers's last ability doesn't remove any abilities the creature has.

Shadow Puppeteers's last ability overwrites any previous effects that set the creature's power and/or toughness to specific values. Any power- or toughness-setting effects that start to apply after Shadow Puppeteers's last ability resolves will overwrite this effect.