REDU format ruling
Physical Double

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)During your opponent's turn: Target 1 face-up monster your opponent controls; Special Summon 1 "Mirage Token" with the same Level, Type, Attribute, ATK, and DEF as that target. Destroy this Token during the End Phase.
Rulings
- You cannot activate Physical Double during the Damage Step.
- If you activate Physical Double and your opponent chains Ring of Destruction to destroy his targeted monster, the effect of Physical Double disappears.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.