Wild magic IS a sorcerer. I dont know how it was in alpha write ups so dont know how it changed. and sorcerers are who gets metamagicsDraconic resiliance is 13 + dex ac and 1 extra HP per level
Bane 3 targets save or take a -1d4 penalty to their saves and attacks, compulsion forces creatures to move in a direction you chose but otherwise they act as they wish.
disadvantage to attack and perception in sunlight.
I have not found a way to get an imp familiar yet
The Chain Pact Warlock?