I do not even think Attune's grudge is the problem here, the main mutation are easily enough to be re-rolled, and I always end up with the one I want here eventually.
I am personally more worried about fitting resistances and the spells cause they are more flavour based, Want to play an Ice typed Amalgama? WOuld be cool if I also had ice resist and the ice spell. Some of the support skills are also just not good. But maybe that's also just because some of the Support spells are a little underwhelming to the point I just want to roll them away personally, but thats probably a topic for another day.
I am personally more worried about fitting resistances and the spells cause they are more flavour based, Want to play an Ice typed Amalgama? WOuld be cool if I also had ice resist and the ice spell. Some of the support skills are also just not good. But maybe that's also just because some of the Support spells are a little underwhelming to the point I just want to roll them away personally, but thats probably a topic for another day.