Hi Auradev, thanks for playing!
Not saying that the balance is perfect, but a triple evolved uncommon and another double evolved uncommon with a matching type by Area 28 will generally get you far regardless of which mons they are. You got some nice luck on that run!
I haven't done extensive balance testing of the game and won't be able to do much of that alone, I'll probably have to gather data post-release and react accordingly
But even considering that, I'll probably nerf the Jellyfish a bit before release. It snowballs too much if the first enemy is weak to it