support summons, more double upgrades for low tier & fun mode

[beto-reborn]

hi, i thought about why not make a building for creeps that come to support ur side or king.
would open a new twist between pussy play and offensive. (maybe also sth like healing wards or sth would work)
Another point is that many units are more or less worthless even they would have a high potential like senty, clockwork, wyvern (& warden) and and and... would maybe be an option to go for more double upgrades like pyro and hellraiser... maybe even for extreme high price.
also sentys could get skill like mutants to higher bounce amount or something.

last point and idk if it is even theoretically possible is gamble mode: means u can turn wheel of fortune and get 0 50% 100% 130% 150% 200% send summons... not really opens a new strategy play but FUN.
thx for ur time.

beto