You can duel thousands of them and they'll all respawn
Since it resolves the ability value to 4, it can be used to allow low-strength outlaws to fight with illegal weapons, or low-knowledge outlaws to investigate, such as by picking locks
Theyre tournament legal anywhere the regular version is legal, and most of them arent nearly as expensive as people assume
Koa'ki Meiru Bergzak is Warrior-Type 2k beater with the ability to attack twice (provided its first attack kills a monster), though it does have a negligible need to reveal Warriors in your hand (or ditch an Iron Core, which you really shouldn't be aiming to do) or else it'll blow up
But Karn exiles it, and Vraska the Unseen can destroy one, too
Would you have a different bear in the number one spot