Hopefully with this thread, I can hold my will on spending my units on cav crystal. So the plan is to hoard the unit up to 15k unit. and here we go
Week 1 : start from August 17th till now 1065 unit
source : all 4basic milestones, all 4featured milestones, 6 5featured milestones, dailycard unit, battlechips, solo event and monthly event quest.