REDU format ruling
Sword Master
Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)If a Warrior-Type monster you control attacks your opponent's monster, and the opponent's monster is not destroyed by battle, at the end of the Damage Step you can Special Summon this card from your hand. During battle between this attacking card and a Defense Position monster whose DEF is lower than the ATK of this card, inflict the difference as Battle Damage to your opponent.
Rulings
- This effect activates if your opponent’s monster is not destroyed during damage calculation.
- The attacking monster must be Warrior-Type the entire time from attack declaration until the end of the Damage Step in order to Special Summon "Sword Master."
- If your opponent’s monster is destroyed by a card effect while your Warrior-Type monster is attacking, it is still not destroyed by battle, so you can Special Summon "Sword Master."
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.