creatures are mostly undead so I think the theme of assassin fits better in
.
Although I think the name is cool in a campy sort of a way, I don't think it fits Elements because it's too descriptive. Calling it "Traveler" or something with a
based skill called "Assassinate", basically does the same thing without being too descriptive. And if it was done that way, it could be
creature with
ability.
I'm not a huge fan of being able to see all the cards of your opponent. When combined with everything else, I think it could make this card OP. Why not just have it make creature cards visible?
I also dislike the death trigger thing because..
A) That's not how it usually works
B) It makes no sense because the theme is traveling back in time and kill the creature before it is even "born", so how can that trigger death effect in current time?
C) It's not really a big part of the effect, therefore it's just an unnecessary addition
Those are the "flaws" I could find. The basic concept is pretty good I think.