The whole theme of the card is about taking away all the opponents favorite toys (their planeswalkers), which the design wonderfully realises without being too oppressive in how it happens
Now is the time for the Magick in Magic: The Gathering
Braingeyser is the original Draw X cards card for players who, well, like to draw X cards
Since you need to be careful about your life total, you want to focus on creatures with high attack as opposed to ones with low power, as those will often take a while until they become a problem (if they even do at all)
This is great in many places and while it won't have the 50k numbers of CC Karmic Guide, it will have loads of value
Although your exerted characters will still be susceptible to getting challenged, Aurora can defend them from actions with her ability