Her ability only prevents it from readying, meaning if you target a non-exerted character with her ability, it wont do anything
While you dont want to help your opponents, you can make sure to stay ahead by having a five-cost character sing the card for free, leaving your ink open to cast those new cards you just drew.
This ones from my private stock. Watermark: Witherbloom Illustrated by Inkognit Standard Legal Alchemy Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
I never got it in a pull, and Id failed to get it in at least 20 wonder picks
Also, heres a list of creatures that give you permanent fog effects that arent in your deck: DreadKhan on F*** Kevin 3 years ago Any reason you don't run Meren of Clan Nel Toth in here
Maybe they didnt want the card banned in Commander, the way Awakening is, or whatever, and didnt fully appreciate how big of a difference that would make