Thats awesome with double strike creatures, and its a nice combo to dish out a lot of damage considering that equipment/aura spells trigger Bria, too
That probably has some implications about the decision to not ban the card in February when the whole Valki-Tibalt fiasco occurred, but its not currently a disaster and WotC isnt legally obligated to keep printing more Living Ends or Glimpse of Tomorrows that would break it
It was cool to attack your opponent with a giant, fire-breathing dragon but, it didn't make a difference whether the Creature was a Dragon as opposed to an Elemental or Djinn, as far as the rules were concerned
Who knows, maybe Wizards will print enough of these that actual Magic players can get one, not just scalpers
This also means that if you miss an Energy attachment, you have an attacker that works for 1 Energy