This is a gem in the right deck, and attaching effects to lands is super powerful
For each of those Pokemon, search your deck for a Fusion Strike Energy card and attach it to that Pokemon
Perhaps this may feel cheat-y as the card is obviously promotional and not intended to be a real card to be played in a deck, but as far as I'm aware, it's a card that exists and saw print, so it counts
Armarouge can use its ability as much as it wants in a turn, which synergizes with Ethan's Ho-oh ex because that card can attach two fire energy from hand onto it, and Armarouge can move that energy to the active Pokmon so it can attack
Mega Latios EX from Promo B set is even worse, as its attack costs two Water energy and 1 Psychic energy, and unlike Lugia who discards only three specific energy (meaning if you can somehow pile up energy on it, it may be able to attack for several turns in succession), Mega Latios EX discards all its energy after a single attack
AI Heres a match between me playing Dimir midrange vs the AI playing mono-red