The long and short of it is that its a 2/1 for G, which is a significant downgrade from Hexdrinker but a big step in allowing green to get away from mana acceleration in Cube and opening up more space for green as an aggressive color
Cost reduction is always good, and given 1/1 tokens are so abusable with Skullclamp, then Oketras Monument is oftentimes gonna be better than a card like Boreas Charger
running Smothering Tithe to capitalize on Cut a Deal and Loran of the Third Path
You might look at Old-Growth Grove and shrug it off for having no immediate upside, but remember the upside of an MDFC land is that it's a land when you need it to be, and a spell when you're all set on lands
Pauper is a ton of fun, and the price barrier to entry is super digestible
Magewright's Stone in a vacuum is just an okay card, but when combined with other tap effects it can become incredibly strong