just want a OCG check

[WolfFan16]

All or nothing
Lore:
Activate only if you have less than 500 Life Points. If your opponent has any face down trap or effect monster cards on the field, you lose 500 life points. If there is no card that fit above description, inflict 4000 points of damage to your opponent.

[NightGuardian1764]

[b]OCG FIx: Activate only when you have 500 Life Points or less. If your opponent has face-down Trap Card or Effect Monster on the field, you take 500 Damage. If your opponent has no face-down Trap Card or Effect Monster on the field, inflict 4000 Damage to your opponent.[/b]