i know this is kinda a stupid post but if you got like 20kk you can gain like 4 lvls or more in a day very easy
i was lvl 108 warrior and got to lvl 113 in just like 5 hours i think probally less i dunno pluss i was lagging
anyways get your 2k vp
get some exp potions find the biggest spawn and bring a token to enter the next lvl of lab if monsters turn green to you
anyways with my warrior i lvled super fast and ended up getting to lvl 120 in like 4 days i think from 113 and super man with exp potions... you do the math considering i was getting 74 kills easy then useing again and getting another 20 or 30 per time it went off
very fast exp for warriors and trojans im not sure about archers but it does make everthing go twice as fast for only like 20kk or 30kk not much to spend that lvling time