Given Oricorios retreat cost is only one energy anyway, this lets you retreat Oricorio for free at the start of your turn, hit with Tapu Koko, then Volt Switch back to Oricorio for your opponents turn
Its VSTAR Power, Star Raid, hits every one of your opponent's V, VMAX, and VSTAR Pokmon for 120 damage at once, which made it useful when the set was in Standard
Hammer of Nazahn might even be a little stronger, since it occasionally gets around equip costs
Cheap and aggressive, it rewards you for additional aggression by drawing cards in combat
She usually won't have the correct Energy cards available to attack, which will give you many chances to attack without having to worry about getting damaged too much
Magic: The Gathering You won't need to wait long to get these drops, either