REDU format ruling
Piranha Army

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)The Battle Damage this card inflicts by attacking your opponent's Life Points directly is doubled.
Rulings
- The Battle Damage doubled by Piranha Army's effect is still considered Battle Damage (not effect damage).
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.