Half the deck cares about pirates and the other about locations, and many of them just dont work well together
Sidequest: Play Blitzball seems quite good, giving a nice power boost upfront and eventually transforming into quite a powerful equipment, World Champion, Celestial Weapon
Like Golos, Gladioluss ability also really helps to offset the commander tax too, since it can at least get you halfway towards paying for it when you cast him a second time at which point you get to tutor up yet another land
Equipment are good because they stick around even if your opponents kill the creature they equip
You can pick two of them based on nothing more than vibes and personal preference, and the game will automatically create a deck using those two archetypes
Yuffie, Materia Hunter has Ninjutu and then when she arrives, you'll steal an opposing artifact and get a free equip on her