I like your first idea more, but isn't it OP since you can just give your opponent weak minion, "Can't attack" minion or Howlfiend? Maybe it should take control of only one enemy?
Your cards are good, but maths flavor is kinda weak, also, maybe calculated strike needs to cost 3? It doesn't have too OP effect.
Your flavor is same as @Demonxz95's? If not, i can't see how it fits the theme, only because of his name? Maybe you should relate it to infinity somehow.
Your card is pretty interesting and flavorful, i think you are ready!
My ideas reposted:
The first version is so neat. The sort of an "I-can't-be-arsed-to-do-this-myself"-card. Will see play in zoo without the battlecry. I'd vote for it.
EDIT: Second version is also great, and I'd also vote for that. Fun to see people trying to figure out the lethal.