With no need to use her ulti and a good reasons not to you don't see much of it despite seeing a lot of Ashiok
Silverquill, the Disputant Silverquill, the Disputant grants all your instants and sorceries an astounding casualty 1, which he can legally do because he doesnt have access to blue and therefore cant copy Time Stretch for free
Theres plenty of value here, especially with that cheap spell-copy ability, but Id rather put that ability to use in the 99 of a commander like Niv-Mizzet, Parun or Narset, Enlightened Exile
While exiling the Disturbed half if it would be put into the graveyard isn't written into the mechanic like it is with Flashback, every card with Disturb has a line of text on the disturbed half that does this to balance out the mechanic
It should be stressed that Pat Flynn is a multi-millionaire, and his efforts are on a scale thats unrealistic for most