great idea i support it:D The alters could change appearances guys. It needs more detail for supercell to add this to the game like details on troops eg damage per second, hitpoints, cost levels they go up to and how about 4 heroes and you unlock bk on th 7 and another 1 on th 8 and th9 archer queen and th10. Keep in mind that th 8 hero must be more powerful than a barbarian king but less powerful than an archer queen and complications like if you get the second alter on th8 or you only have 1 alter until th 9. I think there should be tier 1 heroes therefore giving different attack strategies and not overpowering them completely, dude imgine a flying IMMORTAL UNIT(ballon/dragon hero) or a wizard that is immortal and has GOOD HEALTH(That would be death in a update) and an even more powerful P.E.E.K.A.having a goblin king possibly for th 8(Archers are more preferred than goblins and barbarians therefore making this an obvious choice and I'm not sure if a giant queen/king( so it will have 2 of each gender in heroes) because it some people will suggest stats more powerful than a golem therefore making an immortal tank

