Lastly, I saved Beheeyem because it's really the reason I play pokemon
Trainers can look forward to a special Dragon-type-themed Pokemon Happy Meal, featuring designs of powerful pocket monsters like Charizard, Pikachu and Dragonite together, Rayquaza, and Roaring Moon
The Extra Deck, where Fusion/Synchro/Xyz/Link monsters reside, was cut down to a maximum of 6 cards (instead of the regular 15) in real world tournaments, though you can complete missions to unlock new Extra Deck spaces in Duel Links specifically
it can give your Grixis Control deck a Combo-Control vibe like a pair of Splinter Twins or a couple of Upheavals (if you grok)
With this, I expect Lavina to see some play in 5C Humans, Bant Spirits, and U/W Control decks
well, they're overcosted - but if you wanted to be a real hipster you could load up on bad (overcosted) cards and go for it