REDU format ruling
Six Samurai United

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)Each time a "Six Samurai" monster(s) is Normal or Special Summoned, place 1 Bushido Counter on this card (max. 2). You can send this card to the GY; draw 1 card for each Bushido Counter on this card.
Rulings
- Placing a Bushido Counter onto Six Samurai United does not start a Chain.
- Sending Six Samurai United to the GY is a cost to activate its effect.
- When your opponent Normal or Special Summons a Six Samurai monster, place a Bushido Counter onto Six Samurai United.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.