REDU format ruling
Psychic Commander
Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)When a Psychic-Type monster you control battles, during the Damage Step you can pay Life Points in multiples of 100 (max. 500) to have the monster it's battling lose that much ATK and DEF, until the End Phase.
Rulings
(1) When a Psychic-Type monster you control battles, during the Damage Step you can pay Life Points in multiples of 100 (max. 500) to have the monster it's battling lose that much ATK and DEF, until the End Phase.
- The (1) Quick Effect activates & resolves on the field.
- This effect targets the opponent's monster.
- This effect can activate in any Substep of the Damage Step before Substep 4 - Damage Calculation.
- This effect can only be activated once during the Damage Step. (i.e., you cannot pay 500 LP twice during a single Damage Step for a total of -1000 ATK). However, you can activate it multiple times if there are multiple battles involving Psychic-Type monsters.
- Each copy of Psychic Commander can use its effect during a single Damage Step.
- VS. Brain Research Lab: You cannot place a Psychic Counter on Brain Research Lab for this effect.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.