SMITE

This achievement is unlocked by maintaining He Bo's passive for 30 seconds. His passive is 'Steady Flow' (Each time He Bo uses an ability, he gains the Steady Flow buff which increases his Magical Power. The timer refreshes when another ability is used.)

I personally got this one in an Arena match. I simply stayed in the spawn and kept using He Bo's abilities until the achievement popped.

Maintain He Bo's passive for 30 seconds. The timer resets when you use another ability so keep using the same. I personally used the X ability because the cool down time is pretty fast. If you die then you must start this over. Very easy achievement.