(Sorry to digress)
Singularity is a very good card for the Gift card too. :p
(Back on topic)
It looks kinda Gravity to me, not really Other.
My concern is that it has too many chances to overgrow as it is now. Eclipse? It gains +6/+6. SoP? It gains +20/+20. Dive? I won't. Etc... And when it doesn't grow, it's not very good.
It is too much of a win/nothing card.
My suggestion: make have only one buff at a time, replacing the current buff with a new one each time its effect procs. Make it cheaper.
Or, make the buff on it to stay only for one turn.
Also, change the wording for an "or" if you want it to work on Basilic Blood. Right now, the wording says it doesn't, it only works if a creature gains Atk *and* Hp.