Loxi: I mention opportunity costs a lot, and utility lands in colorless decks tend to have the lowest of those since they don't really have other lands to lean back on besides Wastes
But as it stands, this is an amazing little banned-in-Modern green card that is easy to pull lots of value from if a giant-sized portion of your curve is mana value 5 or more
This creates a fun escalation curve that rewards board-building and patient sequencin g
In theory, you could cast off an entire hand of spells, discard a hand of zero cards, and still restock your hand at your end step
A three mana 'walker is as cheap as you'll typically get, and many of the best planeswalkers of all time, like Liliana of the Veil, are three mana
Tinker Stupid card is stupid