Gruul wants to constantly be building up
Shinies in PTCGP aren't functionally any different to regular cards in how they play, but they're a rarer version that's good for bragging rights on your collection
Then, you need to get your high-cost cards like Maui, Demigod, and Simba, Rightful Heir on the board right away, before your opponent has enough ink to answer them
The one-mana mode of Dread Fugue will trade for cards you could have just spent spot removal on (and an Infernal Grasp drawn later will be more useful than a Dread Fugue), where Inquisition of Kozilek can trade for things that youre glad to handle before they resolve
I hope you've enjoyed this mechanical deep dive, and if you have comments or questions please drop a comment below, or stop by the Draftsim Discord for a chat