Refine 3 cloaks of the same level and type to get a higher level

x3 Lv 1 and 500,000 gold = Lv 2
x3 Lv 2 and 1,000,000 gold = Lv 3
x3 Lv 3 and 3,000,000 gold = Lv 4
x3 Lv 4 and 5,000,000 gold = Lv 5
x3 Lv 5 and 10,000,000 gold = Lv 6

On/Off elemental cloak recipe

Cloak of Water control<1 Day> On/Off
Cloak of Air control<1 Day> On/Off
Cloak of Earth control<1 Days> On/Off
Cloak of Magic control<1 Day> On/Off

Outcome
Cloak of Elemental Master Control<1 hour> On/Off