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Endrek Sahr, Master Breeder is one of the top commanders for it, and its easy to see why
The card can be quite inconsistent, and is otherwise quite meta dependent
Playing Christopher Robin, Adventurer alongside a large collection of other character cards is a sure-fire path to winning.
Youve got Restless Anchorage to play with as well, which is a land that can become a 2/3 creature with Flying for three mana
Since the creature has to attack each turn, it isn't a great answer to opposing commanders, like an Imprisoned in the Moon is, but you disrupt decks that rely on a key card or two when you keep a threat out of your enemys hands