considering the number of decks I build with 7-10 VITAL cards, with everything else being pillars or shards, this one card can beat entire 30 card rush strategies in one play. Annubis, Momentum, Quint; Pharaoh Momentum; Eternity Animate Momentum.
Thats 8 cards that comprise the core of my offense in many decks, just those 8. I might take a purify or two, an enchant artifact and an hourglass, but those 8 are how I win. Annu to protect, Pharaoh to attack, Eternity to refresh deck. What happens, since I have built this to be safe against almost anything, when half are just discarded on turn three?
Consider almost any card you take one of to insure victory, like Eternity or Miracle, this card just has too much chance of knocking those cards away instantly. One card maybe, two or three eh, but my whole hand for two Entropy?
cool concept, and I like the idea, but if its that powerful you should send the cards to your deck, not destroy them outright.