This is a medium complexity, 3-5 player cube with four colors (no blue).
My drafters are veteran boardgamers who have some Magic experience, but it was mostly ages ago. They figure out cards and strategies quickly enough, but they have more fun when they don't have to squint and re-read every card.
Medium Complexity Budget Humans
Spells
Blink
Sacrifice
Self Mill
Go Wide
Madness
Ramp
I'm using proxy dual lands, and none of the other cards are expensive. Cost of nonland cards (all of which are found in a Modern frame) is under $160 as I write.