Even if you get board wiped, it's likely it will survive and continue to draw you cards in the long run
As there is rather little in the way to assist you to mana ramp (Knight of the White Orchid), consider beefing up with some mana-rocks like Thran Dynamo, Commander's Sphere and Chromatic Lantern
There are multiple cards in color with Ashiok that are going to love to use those exiled cards for various powerful effects, like Wasteland Strangler or Ulamog's Nullifier
September 9, 2019 3:53 p.m
An effect that doesn't target you could still cause you to discard cards, for example
Time Spirals Free Suspend Spells Time Spiral created 0-mana spells that you can only suspend, and they all represent broken cards from MTGs past, like Balance, Eureka, and Ancestral Recall