Krark, the Thumbless is a good option, allowing you to get extra Oozes from Slime Against Humanity, while giving you access to red and all the haste enablers you could want
The card could also have been viewed as a simple "goodie" for visitors to D23 not accustomed to TCGs and card certification
Just tap it to search your library for any legendary card and put it into your handit doesnt get much more toolboxy than that
You can have a mana-doubling enchantment for one mana less than the notorious Wilderness Reclamation, bereft of any further twists or limitations and simply by granting its power to everyone at the table, the card is both balanced and hugely interesting to plan around
Transplant Theorist Transplant Theorist offers the artifact-heavy deck a way to see many extra cards
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