It's fine to throw in a few powerful cards just because they're powerful - which is why Sol Ring has a reserved seat in pretty much every Commander deck ever - but usually the best result, and the most fun, comes from crafting a deck that's a specialised, synergistic machine
Youve got other ways to make tokens, plus cutting the Field lets you cut the snow basics for cheaper versions
Kodama of the West Tree Kodama of the West Tree is another good example of a card that gives trample to your other stuff
This is because it gives you an infinite mana combo
I think I can count on one hand the number of times I've seen anyone pay the two, so there's no question that with a trigger every time you cast a spell, you're going to be drowning in Treasure
Minnie Mouse is less popular than Mickey, but she's definitely worth quite a pretty penny as one of the first iconic cards in the entire game