Charizard Lv.55 3/132 from Diamond & Pearl: Secret Wonders
It is Green, so the decks it can go into is limited, but a repeatable ramp effect is going to net you a lot of mana advantage over the course of a game
Mount Olympus could power up all Hercules characters, for example
Bluff your opponent by swinging in with a 2/2 and make out youre gearing up for a devastating flip, even when you know its a noncreature card you cant do anything else with
I mean, they're all fantastic, but UB is an exceptional graveyard color pair, and even houses some of the actual surveil payoffs like Mirko, Obsessive Theorist and Blood Operative
1 Yisan, the Wandering Bard Finally, the top spot of our ten best mono-Green commanders is held by Yisan, the Wandering Bard