Quote Originally Posted by enderlord99 View Post
The basic concept is "A spell that makes each opponent discard, and which also nets you +1 card in hand. Then, add additional effects that are (theoretically) just barely enough to prevent it from ever accidentally aiding an opponent (as unlikely as that would be in the first place)"

If an opponent is running Mill or pure Control, you put made yourself two cards closer to decking out... so, it also makes them three cards closer.
If an opponent is running Reanimator or Dredge, you just put four things into a potential resource-pool for them... so, it also takes five out.

Yeah, it's unlikely to matter... but that's kinda the point; it's all about being thorough with your sabotage. So yes: it's very much meant as a UB card.

I agree that letting the caster choose is probably a better idea than randomizing it, for the reason you mentioned.
With this as the stated goal, it would be much cleaner for it to have your opponent just exile all the cards.

New text would be:
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Target opponent exiles one card from their hand, then exiles the top three cards of their library.

You draw two cards.
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This is still probably worth UB3.