We have to talk about Blood Money, because this card is going to overperform in certain situations, but otherwise be dead weight
Goblin Cratermaker, Hostage Taker, Inferno Titan, Merciless Executioner, Rampaging War Mammoth, Siege-Gang Commander, The Balrog of Moria, Voracious Fell Beast, Feed the Swarm, Wake the Dragon, Arcane Denial, Bitter Downfall, Cavern-Hoard Dragon 13 targeted removal
Blue has no shortage of outstanding bounce options
Overall, Gholdengo ex still has some inherent structural flaws (discarding to attack is never great), but the new tricks it picks up with the release of Black Bolt and White Flare position it to make a good run at the World Championships
Drawing a card every single time a creature gets sacrificed is an exceedingly powerful effect that shouldnt be underestimated and Korvold decks should never have problems with card advantage as long as they keep the sacrifices flowing