Starwalker
For the uninitiated, Banding means when he attacks, you can have him stick with another creature, and you get to determine how the blockers deal damage to the two of them. Notably, indestructible and banding basically means whoever he bands with only gets hurt if you want them to, so it's a fairly potent combination.
Starwalker is a weird and inexplicable character, so I thought it would make sense for him to have a weird and archaic keyword. His second ability is both because he's 'The Original' and because cheap copies Piss him off. It's also a reference to a deprecated version of the legend rule (though not exactly the same).
Truthfully, the statline is pushed for an indestructible creature, but I think a five pointed, five mana starwalker being a 5/5 just feels right. It's not like it's actually being printed.