Institute


 * 1) There are 5 technology types to be researched i the institute: Electricity, Fire, Water, Earth, Chaos/Order, each type of technology has its unique effects
 * 2) Initial level of technology is 1, consume heroes of corresponding types to increase tech experience, for every level upgraded, 1 tech point will be avaliable.
 * 3) Consume tech points to increase corresponding tech skills, unlock advanced tech skills through fulfill requirements of front tech skills.
 * 4) Select the technology you want to use in the embattle interface, technology will bring bonuses to heros in battle
 * 5) When total technology level reach requirements, some special buffs, which have effects on all heroes in battle, will be unlocked.
 * 6) The first time to reset tech points is free, some diamonds are required afterwards.