-make minion permanent.
-when they die, make them respawn for 30 min, 1 hour or 24 hour maybe. if player want respawn it quick, use some scroll from miracle shop.
-make "call - dismiss" option for minion
-make minion upgrading system same as amplying weapon n gear, for example;
-> use minion sphere deffence + sign for improve they deff & minion damage sphere + sign for they attack
-> max is +10 minion ability
thats all