The Ripper.
Damage 10-10 (?)
starting speed 2-3
Damage to - ALL -
Range 2
Bloodthirst! - Upon critting The ripper gains 1% damage/crit damage permanently
Killing Spree - Each Kill the ripper goes into a murderous spree Gaining 5-10% attack speed permanently , and additional 200% for 2 seconds. (does not stack)
As well for combining potions, with how rare potions are (atleast for me) i think it should only require 2 potions per transmute, or make transmuted potions stronger if they take 4.
(ripper is purple tower , cost roughly 4k?)