pokemon tcg sun & moon cosmic eclipse booster box S&M Pokemon TCG: Cosmic Eclipse Booster

Three mana for a commander that offers (limited) card advantage and becomes a relevant threat later in the game is well worth playing

Stoneforge Mystic no longer finds Colossus Hammer (or anything else), Archon of Cruelty is just a big flier and no longer wins the game for Creativity decks, Primeval Titan cant tutor up lands and gets blocked by Elesh Norn, Mother of Machines for days, Omnaths landfall ability doesnt trigger - the list of popular decks and cards that Elesh Norn stops is surprisingly long

Loxi: Rodolf is cool, but he's a bit expensive and combines two archetypes that might be a bit hard to slap together

Also some phone wallpaper for you here:

Grookey can be obtained from Mega Rising: Mega Altaria pack in the Mega Rising set