Edison format ruling
Thought Ruler Archfiend

Card text as printed in this era1 Tuner + 1+ non-Tuner monsters
① If this card destroys a monster by battle and sends it to the GY:
Gain LP equal to that monster's original ATK in the GY.
② If a Spell/Trap Card is activated that targets 1 exactly Psychic (anywhere) (Quick): You can pay 1000LP;
negate the activation, and if you do, destroy it.
Rulings
- The ② effect can only negate cards, not effects. It can also only negate cards which target exactly 1 Psychic (and no other cards).
- The ② effect can negate cards which target Psychics anywhere, even in either GY.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.