I'm thinking of building a team around the kind of abilities that work like Dormammu's special ability:

Problem is I only know of two other characters that have this, the Ancient One and GL Abin Sur. I would love to be able to throw out in a higher point game 2 or 3 150 points or below characters then supe them up through sacrificing my own pawns. Anyone else know of other characters who can do this? Preferably lower point ones like Abin and Ancient One?

I don't know of any others with generic empower a minion abilities, though I'm sure there are some. That said, I'd look at figs like Isis and Osiris with their whole getting buffed when the other dies. That sort of thing coupled with Abin Sur, Dormmamu, etc. can buff either Isis or Osiris up into definite combat monsters.