Card Rulings:Evilswarm Ouroboros

"Evilswarm Ouroboros":

OCG Rulings

The effect that sends a random card from the opponent's Hand to the Graveyard doesn't target.^[1]

If at the time of the resolution of the effect of Evilswarm Ouroboros the selected effect cannot be applied, the selected effect cannot be activated again. Also, even if the activation of the effect of Evilswarm Ouroboros is negated by Light and Darkness Dragon, the selected effect cannot be activated again. Furthermore, even if the effect of Evilswarm Ouroboros is negated by Skill Drain, the selected effect cannot be activated again.^[2]

↑ ^a ^b ^c Konami FAQ: Effect Monster > Evilswarm Ouroboros
↑ Konami OCG FAQ: If at the time of the resolution of the effect of Evilswarm Ouroboros the target is no longer on the field so that the effect cannot resolve, can the same effect be activated once again? Also, if the activation of the effect of Evilswarm Ouroboros is negated by Light and Darkness Dragon, or the effect is negated by Skill Drain, can the same effect be activated once again?