Dice are identified by the number of faces each one has
Realizing we can create Equipment that can be put into creature slots was a big innovation, one that we kept using on individual card designs, so it's not surprising that we keep making mechanics with it
However, combine this with Ashaya, Soul of the Wild which makes all creatures count as lands, and you can be in for some big wins
See the storage guide If you are strictly a collector, wait for the 'second wave' of product hitting retailers in mid-February
It's the headliner of the best ex Starter deck in Pokemon TCG Pocket, so definitely consider redeeming that one if you haven't spent your Deck Ticket already
Puresteel Angel just shouldnt be able to stack up emblems and reshuffle itself into the library