The lifecost is interesting, since black has historically been better at card draw than green, but this seems to argue in a different direction, although green has always been good at drawing through creatures, specifically
As for Sam, Lotal Attendant, he is a 2/4 creature that creates a food token at the beginning of combat on your turn
It has no notable vulnerabilities beyond its cost, and thats doubly true now that Divide by Zero is gone
I will argue, though, that what really killed the hype for Set Champs was the fact that the prize card, Mirabel, Family Gatherer, was and still is completely unplayable
A 6-mana creature that must survive a turn cycle to have an impact doesnt line up with the current format, especially since this elder dinosaur can whiff
Teysa Karlov Teysa Karlov doubles all of your death triggers and also buffs all of your creature tokens