The Ancient One isnt the greatest mill commander, but with cards like Training Grounds and Aether Syphon you may be able to mill an opponent out
In exchange for your draw step, Null Profusion turns every single card you play into a cantrip
Misdirection is just one mana more, so you aren't really losing any major tempo or effects by running Misdirection over Deflection, like you are with Counter vs Force
While it isnt MY personal style of card, I do remember a team member at least mentioning it in early exploration
Instead of lifegain for lifegain's sake, which is a common theme among angels, Liesa takes the life you gain through cards such as Bishop of Wings or Righteous Valkyrie and pumps it right back into casting spells your opponents may be more hesitant to play
The responses laid bare the issues players have with the format