The monsters are all technological glitches that turned into alien machines
In the case of unopened items and bundles, while you cant transfer them to Pokmon TCG Live, you will receive an amount of crystals - the apps in-game currency - based on the number of unopened products (not including specific unopened items, such as reward chests, avatar collection boxes and certain booster packs and theme decks): 1 to 9: 500 crystals 10 to 24: 1,100 crystals 25 to 49: 2,250 crystals 50 to 124: 4,700 crystals 125 or more: 12,400 crystals
While these abilities on their own are good, the fact that you can effectively cast The Wandering Emperor as a combat trick makes them incredibly powerful
Note that all Red mana making lands increase, not just Mountains
Even the bitterest enemies of the Burning-Tree Clan respect the strength of Borborygmoss rule