If you want to use tokens, if you want to play some flicker or reanimator effects, and if you care about power or toughness 1 creatures (which is weirdly a thing, now), then this little 40k card might be up your street
Crucible of Worlds on an Angel
They have a very similar setup with price history, and use an escrow system so buyers are much better protected
Will of the Mardu $6.47 Will of the Mardu is a good card when youre winning, when youre losing, and especially when you have your commander out
She went through many different revisions, eventually landing on this copy creature with light +1/+1 counter synergy
Well of Lost Dreams is the best of these options : any time you gain life, you can pay any amount of generic mana up to the amount of life you gained, and draw that many cards