Ok, so here is my problem...
I have an Alpha Royal Assassin (my prized possession). The ability text says "Tap to destroy any tapped creature". ANY TAPPED CREATURE. The new Royal Assassin says "Destroy TARGET tapped creature".
I was trying to destroy one of my friends' creatures that had shroud. We all know that creatures with shroud can't be the "target" of spells of effects. However, the text in my Royal Assassin doesn't say anything about targeting anything. Shroud creatures can't be targeted, this I know. We have played like this for awhile: if a card didn't say "target", then we were under the assumption it could affect a creature with shroud.