Steel saw its own set of staples including Mr Smee - Bumbling Mate and Robin Hood - Champion of Sherwood while songs like And Then Along Came Zeus solidified Steel Song as a top deck contender
I can see why it is being done from a design point of view, it is nice to not have to tie these kinds of effects into artifacts if you don't want to
There are dozens of great strategy archetypes that can be incorporated into a Commander deck, and many of these strategies have a lot of room for variation
Spelunking Spelunking is useful on far more than caves, and really only takes a land or two that would've entered untapped to be worth playing
More importantly, it has the ability Second Wind, which reads: Whenever an opposing character is damaged, ready this character. Most ready effects in Lorcana specifically state that a character who is readied cannot quest again for the rest of the turn, but a select few powerful characters can ready and quest multiple times in the same turn