Forum:Stardust Assault vs. Ryko

If i activate Ryko, Lightsworn Hunter effect, which of it's effect that Stardust Dragon/Assault Mode can negate since it is activate at the same time. Or the player can wait until the active player declare to use Ryko 1st effect or not? I'm a bit confuse since Ryko 1st effect is an optional.

Ex:
 * "Player A activate both Ryko, Lightsworn Hunter effect. Can Player B use his Stardust Dragon/Assault Mode effect to negate the destroy effect or he only can negate the milling effect?"

NoobYugiohPlayerLanspearsaber 18:46, February 24, 2010 (UTC)