DnD cards
Possibility to use an alternate set of cards that represent individual effects rather then army effects.
Ex.:
Taunt=Force target to attack you;
Blind=cause dense fog on an area an all territories bordering it;
Heal/Mend=recover x% lost units on that territory on an adjacent territory of your control (if territory is lost, otherwise they heal on the same place;
Shield = no damage taken or dealt on that territory;
Fireball=deal x damage on target territory and x*0,5 on surrounding territories;
Etc etc etc
This would allow for dungeon mindset play with commanders transformed into heroes and a bunch of new maps.