who should R5, 5*undep Medusa, warlock, havok

i have 5star R4 undep Medusa, Warlock and Havok
mainly use for event quest, AQ and AW offense
who should be best to R5 first? please help

Comments

warlock by far

Medusa shouldn't really be in the discussion until she is awakened.
The answer is Warlock

None, wait until you start awakening.