Talk:Evolution/@comment-2A02:AA7:4608:4C6E:3063:AED6:C9F0:81A6-20191022042856/@comment-78.31.238.8-20200703150157

Q: How the Evolution, Skill and EXP Boosters work? How many trophies will return back after I use the Booster?
A: Evolution booster adds 300 soul stones or the amount of the soul stones needed to evolve the hero to the next rank. The proportion is the following: 300 soul stones = 500 cross-server trophies, so the formula is:

(500 / 300) * number of unused soul stones.

Skill booster ups all unlocked hero skills to the current level and contains 5123900 gold. The formula is the following:

(500 / 5123900) * number of unused gold.

XP booster adds 2948945 XP or the amount of the experience points that the hero requires for reaching the current team level. Here’s the formula:

(500 / 2948945) * number of unused XP