you can use the traps without raising the unit tho. The difference between an awakened level 90 ricola trap and a level 1 non awakened , non cc-ed ricola trap is 700 damage (which on a boss is meaningless) and 1 second stun. Which sure , it is an improvement (from 2.5 seconds to 3.5 seconds) , but it's hardly worth the amount of silvers and experience you have to put in a bad unit