Etrata, Deadly Fugitive and Roshan, Hidden Magister Etrata AND Roshan
Green tends to have the biggest creatures at any point in the curve, so it lends itself well to stompy strategies that make use of 2-mana 3/3s like Werewolf Pack Leader and Keen-Eyed Curator and such to outsize your opponents and rush them down
But I think currently the metagame has a hole for Tempo decks, and this list naturally lends itself to that style of play
In fact, I speak it anytime I play a Counterspell that counters and does something else bad for my opponent
So not only do you get to see extra cards, you get to stack your deck for the next turn too
Since it exiles itself, you only get one shot, but that shot can swing a game by putting multiple tools back into your hand when you need them most