Edison format ruling
Brain Jacker
Card effect (current official text)FLIP: Equip this card to a monster on your opponent's side of the field and treat it as an Equip Card. Take control of the equipped monster. Your opponent gains 500 Life Points during each of their Standby Phases.
Rulings
- If this monster is attacked while face-down, and is destroyed as a result of battle, its effect does not activate. (Unlike "Kiseitai" because "Kiseitai" has an effect preventing damage calculation.)
- The effect of "Brain Jacker" that increases Life Points can be chained to.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.