Thankfully, targeted removal on the transformation into Hydaelyn, the Mothercrystal makes the card draw even better with upside, assuming you're able to keep another legendary creature around
In short, you get to create a 3/3 Dalek artifact creature token during your end step if an opponent has lost three or more life during your turn
Those Deadpool copies also stick around after they attack, and you can keep making more Deadpool copies every turn to steal abilities and leave your opponents with creatures that damage them every upkeep
Nylea is only $8 and offers a bit of creature cost reduction and a good way to fill up the graveyard and filter through your deck in a hurry
If any colors can make it work, blue and white can, so I think this is an interesting option
Vesuvan Drifter Heres where we move up a notch