"Once per turn" rulings?

[wattaguy006]

Can you activate a monster effect that says "Once per turn..." in it's effect during either players turn. For example, Blackwing- Gale the Whirlwind's effect says "Once per turn, you can halve the ATK and DEF of 1 face-up monster your opponent controls", does this mean you can half the attack of an opponents during both your turn and your opponents turn.

[YGO Master Shake]

Not unless the effect specifically states you can, no. Otherwise it would say "Once during either players turn..."

[wattaguy006]

Thanks for the answer Master Shake.

[+ Miley Syrus +]

Not unless the effect specifically states you can, no. Otherwise it would say "Once during either players turn..."

Confirmed.

[+ Sayokyoku]

To recap:

Not unless the effect specifically states you can, no. Otherwise it would say "Once during either players turn..."

Closed.