Draining your opponents when you cast spells provides excellent pressure, and that sort of repeatable effect is often the first step to assemble some sort of combo
Although the price tag makes it a limited option for many players, Traveling Chocobo will easily become a guaranteed staple for competitive EDH decks, adding to the list of Magic: The Gathering 's best possible commanders
You could also go in a land interaction direction, perhaps one that lets you steal or borrow from your opponents mana base
Creatures that enter the battlefield or lose their counters later in the turn and noncreature permanents that become creatures later in the turn won't get -2/-2.
(4/14/2023) Assigning a creature's damage as though it weren't blocked is all or nothing
It isnt a Legend, making it attractive to run multiples, but I would advise against it