1/ Few crusaders doesn't have 7 upgrades, it would be nice if they got the one that miss.

2/ Allow to toggle scientific number in settings.

3/ New objective type: Free-Play Custom
Player can choose how much crusader is allowed in the formation. (3 to 12?)
Player can modify game speed, 0,5 - 1 - 1.5 - 2
Player can change base DPS: 1/2, x1, x2

Other idea make an objective that allow 20 hero in the formation but base DPS is 1/4 and the middle is an NPC that must survive until the end.

4/ Make a new spell: Bullet Time, cooldown 8h
When activate, stop the time of the game, this include dps, cooldown, duration of spell and buffs.
The point is for use buff that boost click damage and critical with this ability then click like crazy.