Here is something I want back in my 5e!  Inspire Competence as a spell

Inspire Competence

Divination 1st level spell

Casting Time: 1 action
Range: 30 feet
Components: V, S
Duration: Concentration, up to 1 minute

You begin through word or song to inspire your allies.  As you concentrate on this spell, all allies within the range of this spell can roll a d4 and add the number rolled to all skill checks it makes while in the area.

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, your allies roll a d6.  When you cast this spell using a spell slot of 5th level or higher, your allies roll a d8.  When you cast this spell using a spell slot of 7th level or higher, your allies roll a d10.  When you cast this spell using a spell slot of 9th level or higher, your allies roll a d12.