REDU format ruling
Gladiator Beast Octavius

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)When this card is Special Summoned by the effect of a "Gladiator Beast" monster: Target 1 face-down Spell or Trap Card in the Spell & Trap Card Zone; destroy that target. At the end of your Battle Phase, if this card attacked or was attacked: Shuffle this card into the Deck or discard 1 card.
Rulings
- "Battling" requires this card to be involved in Damage Calculation (If this card's attack is negated, the ② effect can't activate).
- If multiple "Gladiator Beast" effects are activated at the end of the Battle Phase, they don’t go on the same Chain (they each activate, one after another, each on their own Chain).
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.