Players who rank below 10 will be rewarded EXP pill(s) automatically according to the number of lucky color stones. The way the lucky color stone exchange works is to exchange the highest level EXP pill first, then use the leftover stones to exchange the lower levels step by step.
For example: If you have 150 lucky color stones, then you will get 18 Pills Lv3, 1 Pill Lv2, 1 Pill Lv1(18×8+4+2=150).
Tier 1: 1 stone will be exchanged for 1 exp pack
Tier 2: 2 stones will be exchanged for 1 lvl 1 exp pill
Tier 3: 4 stones will be exchanged for 1 lvl 2 exp pill
Tier 4: 8 stones will be exchanged for 1 lvl 3 exp pill
You will receive the reward for the highest tier possible based on the amount of Lucky color stones you have! Any remaining stones leftover from the highest tier you qualify for will be applied to the next applicable tier.