The only issue with the card is the high attack cost, but with Coalossal you can get three energy down in one turn
Having tracking information and insurance will ensure that you will be taken care of, no matter what happens
The build would also likely benefit from a Mewtwo ex, ensuring players can hit hard and take damage if need be
They're also great in decks that can cheat the overcosted cmc that the spell sides are packing, like Narset, Enlightened Master and Golos, Tireless Pilgrim
Where are my goddamn legs? Other monsters expressed concern that, while their ancient spirits remain bound in expensive cardboard, they exist at the whims of the games publisher, Konami
[31] Shadow Lugia has 300 HP, so it could take a few hits if you did use it in a game