mtg whenever you cast an artifact draw a card Volo, Itinerant Scholar (Foil Etched) [Commander Legends: Battle for B The Endstone

Its not foolproof, but its a powerful ability that can really turn the tides

Unfortunately you cant really save money by replacing Sheoldred

CK doesnt report the price of lower-than-NM conditions when NM sells out, so you need to check the site to make sure there are MP and worse copies available (there are) but this is selling out at $4 and that makes me think it could be $9 again with some help

Solitude Solitude is a beast

But really, just about any green deck will have big creatures, so this card will be an excellent source of extra mana, and since it has vigilance, you can even attack with it first if you need to