I've been trying to build a UR deck involving my favorite card in Innistrad, Ludevic's Test Subject. The goal is to use Delvers and control early game to keep the field level, keeping a draw-go type deck.

Ludevic's abomination is a mana dump, and him flipping typically will win the match if he's not dealt with quickly.

Originally the deck had 4 fling, but I realized that the card really hurt my card advantage if not used sparingly. The prospect of flipping the Test Subject, Swing, Fling for 26 damage turn 5 is too hilarious to pass up however, so it stayed as a 2of. Fling also works wonders with the charmbreaker devils w/ the pike. And as a last resort, in response to a Doomblade or etc, fling as a last bit of oomph out of the bigger cards.

I've play tested it only slightly, and I'll be taking it to FNM this week. Please comment and critique! I want to build the deck as a direct response to a lot of the threats currently in the meta, and any constructive comment is a good one! Thanks!