Edison format ruling
Spirit Reaper

Card text as printed in this era① Cannot be destroyed by battle.
② After resolving an effect that targets this face-up card on the field, destroy this card.
③ If this card inflicts Direct Battle Damage:
Your opponent discards 1 random card.
Rulings
- This must be face-up after the targeting card resolves in order to be destroyed. (If the targeting card’s activation is negated, this card is not destroyed).
- This card be destroyed by its ② effect even if targeted by a continuous effect. (Such as an Equip Spell Card, or by "Call of the Haunted").
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.