click here for cave keys exp/ keys required

Level 1 = 20

Level 2 = 40

Level 3 = 55

Level 4 = 75

Level 5 = 105

Level 6 = 130

Level 7 = 165

Level 8 = 210

Level 9 = 275

Level 10 = 370

Level 11 = 490

Level 12 = 660

Level 13 = 920

Level 14 = 1200

Of course your initiative gains will be higher by 150% for example if you have level 9 charm

So upgrading all 5x 12>14 runes will give you 1200 - 660 = 540 + (540 * 1,5) = 1350 x 5 = 6750 initiative etc.

Now is it worth gaining +6750 initiative for the price of aprox. 47705 keys?

By the way upgrading all 12>13 will give you +3250 stats for the price of 20450 keys average

compared to 13>14 with +3500 for the price of 27255 keys average