Some ideas to balance it :
- "if you have 4 cards or less in your hand, draw a card" --> make it less good for most decks, as you are forced to wait for an half empty hand, while still excellent for cheap creatures rushes and novae decks
- "60% to draw a card" -> make the drawing power unreliable, so precogs remain more interesting to be sure to speed the deck
- increase quanta gain by 1 / replace "draw a card" by "only take quantum from other elements than (its element)" -> becomes a decent quantum generator, especially coupled with quantum pilars, but lose that op drawing power
- becomes a one turn duration permanent, with as ability
draw a card -> delay by one turn the drawing power, allow it to be permanent controled, add a cost if you use the drawing power (and keep time's monopoly for this kind of power)
(+ of course if the drawing power is kept, limit the total number of quantum flash you can have in a deck to 6 no matter their element)