There are all sorts of ways to empty your library in Magic, so winning with the Oracle is remarkably consistent
For each Saproling you have in play put a 1/1 green Saproling token into play
Uro, Titan of Natures Wrath You dont see Uro, Titan of Nature's Wrath around often enough to think its busted, but thats just because its been banned in practically every format but Cube and Commander
Creature - Goblin Color tag templates(None) Somberwald Beastmaster When this creature enters, create a 2/2 green Wolf creature token, a 3/3 green Beast creature token, and a 4/4 green Beast creature token
It doesnt really help with enter effects because they will enter face down, and it turns off whatever you tried to protect
Be aware that while you will find many listings priced around $50, you should always confirm the contents with the seller