Naturally, the +1/+1 counters that Sphere Grid provides will work wonders in any +1/+1 counter-themed Commander deck
Use the number of creatures you control and the number of Equipment you control when Slash of Light resolves to determine how much damage is dealt
Of note, all Chocobo from this set have a Landfall-derived synergy of some kind
The new Vanish ability states that "when an opponent chooses this character for an action, banish them." This appears to be a negative keyword, although it likely syncs with cards that take advantage of friendly cards being banished
Then, compare this to what you expect your opponent to develop, and assess who benefits the most from the situation you visualize
Without the Brooms, it's nothing special, but with them, it's a standout card that costs only two ink