u/Indiozia

For perspective:

• Mina is in SoL 28; Zombies debut in SoL 34

• Doron is in UL 36; Aku debut in UL 38

• Darvin is in ZL 31; the next update will add ZL 32 and possibly ZL 33

Newton is also followed by the debut of minor Explosion enemies like Ange Lackey, but they don't start to appear until 2 sub-chapters after Newton, whereas 1.2x strength magnifications are introduced in the first post-Newton stage.