REDU format ruling
Evil Blast

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)Activate only when a monster is Special Summoned to your opponent's side of the field. Equip this card to that monster. It gains 500 ATK. During each of your opponent's Standby Phases, inflict 500 damage to your opponent.
Rulings
- "Evil Blast" targets the monster that you equip it to.
- You cannot activate "Evil Blast" during the Damage Step.
- When "Evil Blast" is equipped to a monster, you can switch it to a different monster with "Tailor of the Fickle."
- The effect that deals damage starts a Chain.
- You can activate "Evil Blast" even if multiple monsters are Special Summoned at the same time.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.