Royal assassin

[Destore117]

Can you use {Royal assassin} to tap and kill an attacking creature before you take damage?

[Sardok]

Yes you can.

[Rass]

Can you use {Royal assassin} to --->tap <--- and kill an attacking creature before you take damage?

You can't use the assassin to tap the creature. It works as long as the creature doesn't have vigilance.

[Sardok]

I assume he means if he can tap {Royal Assassin} to destroy a tapped attacking creature.