Nice spin off the Magic rules. However, awarding a standard 2 pillars to anybody would make it a little too easy to abuse by building decks that just rely on two pillars of some kind:
E.g., what about a deck that only has two entropy pillars which will pay for loads of supernovas in 2nd turn?
If it is even possible to program this for Elements, I would therefore plead for an "average" pillar draw as given by the deck, e.g.:
45 cards in deck, 15 pillars in deck (= 2,31 statistical pillar-draw)
-> player will get 2 pillars
or even:
-> player has got a 69% chance to get 2 pillars
-> player has got a 31% chance to get 3 pillars