Gustavo uses the Sky Field Stadium card to make room for them in addition to having multiple attackers at the ready
I find this card most impressive in spellslinger or Dragon-tribal shells where opponents are likely to spend removal on it ironically generating more Treasures in the process
Its speed-based cost reduction gets your vehicles out faster, and the stat buff it grants to your creatures helps to crew vehicles more efficiently
Also, Tier 3 doesnt mean a bad deck or a mediocre one, it just means a deck thats less popular and less likely to win than decks above
Putting these new XYZ cards together with Synchro Monsters, Fusions, Ritual, Effect, and Normal Monsters, and Spell and Trap Cards, makes a vast array of customisation options possible, not to mention the approximate number of 5,800(!) cards to mess around with
Chaos turbo decks thrive off being able to resolve multiple Dekochis and utilizing Graceful Charity with Thunder Dragons in hand which Protector just stops