Nice idea.
so if you bles seastar and then use skill they won't grow because they're already 3/3?
And if you give it momentum will they both get momentum?
If you bless it and spilt. You will get two 3|3 stars. and no they wouldnt grow. So you have to be careful about when you want to split. But you can use this to protect them from cc, if someone poisons your 6|6 star with a bunch of poison. you can split it and get 2 3|3 stars that arent poisoned.
right now, neither would keep momentum. because you are killing the original star and producing two new stars. It is hard to buff these effectively. but i think the exponential growth is enough of a buff. once youve filled your field you can buff them individually