Skill Synthesis (5e Feat)
From D&D Wiki
You may choose two features you have, be they racial or from a class, these two features must be of a simular nature, e.g. two supports spells or two damage features. You may merge these features into one, e.g. if you were to merge regeneration with greater restoration you will gain a spell capable of curing ailments, while also healing wounds and regrowing lost limbs. The amount of uses you would normally have is halved then rounded up to balance the strengthened ability you gained, if it were a spell its spell slot increases by one relative to the highest level spell you merged, you are incapable of merging spells of the 9th level.
This feat can be taken more than once, every time you can pick another two features to merge.