X Hero Siege 3.33, Extreme 30 Lich & Beast Master, 8 ways Dual Hero 

Right. A bit annoying boss as well.

A lot are good, but it depend also how do you play, solo or with others. Some support heroes have nice skills but meh solo, in team they are really nice though if you playing on high extreme setting.

I totally agree on 123dmytro123 's opinion. For solo play IMO Lich and Pit Lord will be best duo. But if team play stories will be changed. Here's a video that some Korean 4players did extreme level 75. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-shBcp4JIotA.html If you don't understand Korean, no problem to see. Red player was leading the game. Most of chats are do this, do that or just small talk. For team play they have a kinda a role. This video for example, Red player (Uther and Arthas) - Like a supporter Purple player(Marine and Mountain King) - Like a tanker he also became dealer when he got Lighting sword. He tried to get Shield of Invincible at the early stage of game. Yellow player(Sorceress and Blade Master) - Like a dealer. But yellow player didn't use Blade Master until he fully level up and equipped. Blue player(Lich and Priestess of the Moon) - Like a main dealer to kill the dragon, hero, boss.