This has been the issue that has kept mono-white from being a ramp color in its own right: white can catch up, but it can't really get ahead without spending a lot of mana on things like Kor CartographerKor Cartographer
The latest Standard-legal set Edge of Eternities brought with it a bunch of artifact synergy goodies, some of which already see play in Urza decks, according to EDHREC data
It seems like we cant get away from three-power creatures, at least to some degree
You'd probably also run Rampaging Baloths, which give you 4/4 Beast creature tokens when you get a landfall trigger, and Scute Swarm, which reproduce like crazy
If possible, have your cards professionally graded, as graded cards are worth more than ungraded cards