Goat format ruling
Stumbling
Card effect (current official text)Any monster that is Normal Summoned, Flip Summoned or Special Summoned is changed to Defense Position.
Rulings
- The effect of Stumbling goes on a chain immediately after a monster is Summoned. As a mandatory Trigger Effect, Stumbling is always on the chain before optional Trigger Effects ("Mobius the Frost Monarch") or chained S/T Cards ("Trap Hole").
- Stumbling changes a monster to face-up Defense Position, not face-down Defense Position.
- When Stumbling and Final Attack Orders are both applying, a Summoned monster is changed to Defense Position, then changed to Attack Position.
- If Stumbling is in effect and you Summon Exiled Force, and your opponent has Trap Hole Set, Stumbling initiates a chain with Stumbling's effect as Step 1. Your opponent can activate Trap Hole as Step 2. You cannot chain Exiled Force because its effect is Spell Speed 1. Therefore Trap Hole will destroy Exiled Force before you have a chance to Tribute it.
- If Dream Clown is Summoned while Stumbling is applying, and changed to Defense Position by Stumbling's effect, Dream Clown's effect activates after Stumbling's effect resolves.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.