It turns your Radiant Pokemon pick into an ace up your sleeve maybe you'll fancy an early obfuscation like Radiant Venusaur who Burns, Poisons, and Confuses your opponent and dishes 90 damage
This is true for any competitive formatted game
If youre ahead, play defensively and conserve Energy while targeting key threats on your opponents Bench
Thats made what were already some valuable chase cards Lillies Clefairy ex , Salamance ex , Ns Zoroark ex , and Ionos Bellibolt ex just as expensive and worth pulling as ever
Whenever you take battle damage you can special summon Gorz for free from your hand, alongside a token with attack and defense equal to the damage you just took
Its perfect here and is one of the reasons I wanted to use Karrthus so I could add green to the deck