(If not, now you know!) Start your engines
Things get crazy when you can discount your artifacts with cards like Etherium Sculptor, Enthusiastic Mechanaut and Foundry Inspector and chain together a big turn casting a lot of artifacts, maybe with an artifact like Aetherflux Reservoir on the battlefield and return a bunch of artifacts back to your hand with Paradoxical Outcome and cast them all again
*All prices accurate, of course, as of script writing.
With this collection, you can call on Ionos Bellibolt ex and its Electric Streamer Ability to energize the rest of Ionos Pokmon on your side
Gyarados ex is a Water-type TCGP card that offers the player expensive and unrewarding attacks, making it the worst ex card in the mobile game
Good general Magic advice: value anything that says "draw a card" for doing what you already were going to do