Slycne said:
Two notes:
1) Show and Tell [http://gatherer.wizards.com/pages/card/Details.aspx?multiverseid=5697] is actually 3 CMC to cast. So one more turn until you can drop Mr Prot from Everything [http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=244675].
Progenitus is actually pretty easy to deal with, provided you're playing with one of the right black cards. Chainer's Edict, Diabolic Edict, Consuming Vapors, Ends(from Odds/Ends), Gatekeeper of Malikar, Geth's Verdit, Hit(from Hit/Run), Twisted Justice, Warren Weirding, Wing Shards, or non-targeted stuff like Damnation or Wrath of God/Day of Judgement(Or Rout, or Akroma's Vengeance, or Plague Winds).