You can then cast Kellan, the Fae-Blooded from exile for just three mana, giving you a 2/2 with double strike and giving other creatures you control +1/+0 for each aura and equipment attached to Kellan
Most importantly, its great fun
send as many cards you control as possible to the GY, except from the Extra Monster Zone, and if you do, send cards your opponent controls to the GY, up to the number of your cards sent to the GY, then, inflict 300 damage to your opponent for each card sent to their GY by this card's effect
You can remove counters from Steelbane Hydra to remove artifacts and enchantments, while Apocalypse Hydra trades its counters in to ping something
You can go digging through your deck for either: Two Basic Pokemon cards One Evolution Pokemon card Since Supports are played in practically every deck, you can bet that Brocks Scouting will see a lot of play