VampireLord×Maggot
Flash×(any ball that applies stacks of bleed) Due to how many balls spawn have levels set to manual. Don't get Vampire sword until you have a fusion available and the goblet level 3. Then get the sword to level 3, evolve to Soul Reaver immediately after to avoid being shot down to one health. Immortality. (The hardest part about this is getting the passive items.)
2 characters•4 balls•3 items•11/14/2025