I like it. I like it a lot.
However,
1)
2 for a random creatures is kinda cheap.
Be sure to consider Fate egg, which costs 3 to summon, and then 1 to activate the next turn. And that requires 1 element.
This one costs 2 and gives you two elements to draw from.
2)
2
for a more versatile parallel universe, that effects not just creatures, but other cards as well, is also really cheap, considering that parallel universe costs 6
.
It is true that this parallel universe would require a minimum of 2 turns from when you draw it in order to activate it (if I understand correctly), and it is also true that it cannot be used to double the effect of stat gains or mutations (unlike parallel universe), so it needn't be a full 6.
Considering that they are both kinda cheap compared to their counterparts in other elements (or even the same element),
I would propose the following balancing.
Increase both the cost of the card and the cost of the ability by 1, and that would make it completely within the bounds of acceptable differences in powers between cards.
It can get away with being slightly cheaper than its counterparts since it would be most effective in a rainbow or
/
deck, neither of which is too common.