i think he's being starved for ideas
we don't need a creature generator, or anything to help speed, time has all the speed it needs and deja vu's for limited spam, what it needs is something to hit the opponent, like a werewolf, vampire, phase recluse, ect.
if fate eggs hatched into a random DRAGON though, then it'd be very useful. unfortunately they don't and time has to come up with its own card.
while this completely contradicts what i just said a thunder/lightning factory might be in order, that could generate sparks for a price or when something dies, as an afterthought.