Four each of Judy Hopps Uncovering Clues and Nick Wilde Persistent Investigator would be an instant power-up
Miscuts, Off-Centered, and Corner Cuts The defining characteristic of a miscut card is that you can see another card somewhere
If you want consistent graveyard filling, Sludge Titan does a great job, but is the mana cost right for when you want to fill your graveyard
First, it improves your hand quality
Goblin Tutor : Not legal in most formats, you'll probably need to rule 0 with your group to play it, but this tutor from the UN sets is both random and a fun tutor
Where I think this is very strong is with planeswalkers that target your leader, like Basri Ket's +1 to put a +1/+1 counter on it, now your team for two more mana