We could build around the first ability and just slap some classic two-card infinites in there, but I know thats not going to be the Eisenhorn-centric identity my friend wants his deck to have
Eleven is a sweet little card-drawing engine when she attacks, though as a 3/5 she can quickly get outclassed by bigger creatures later in a typical game of Commander
In terms of cards, each Doctor Who Commander Deck contains a 100 card, pre-constructed Commander Deck, plus 10 Planechase Cards (which add an extra layer of randomness and special effects to your MTG games, should you choose to use them) and a Collector Booster Sample pack, which contains 2 special alt-frame cards, including 1 Rare or Mythic Rare card
Mirror Entity and Maskwood Nexus If you don't want to bother with naming specific Creature types, or if there's motivation to grant your Creatures all types, there are a couple Changeling-related options