Future Changes regarding Upgrades und TC

[Vomitus]

May be spawn an invisible unit?hock: :twisted:
Or a unit, that has invisibility as ability that need to be activated and modify that units behavior to use this invisibility once its cooldown is off.

Something similar I could propose with Divine Shield ability for the unit.

May be unit with divine armor and magic resistance 95% or smth.

Or a kamikaze unit with 450 speed and 1500 explode dmg in 600 aoe.

And how about making factory upgrades to add some additional abilities to spawned units at all?
Like overall increasing movement speed, attack speed, regeneration, (!)attack range.

Well... a lot of ideas are swirling in my head but only few I can transfer to you in understandable form:)

[Addition::Edit]

Factories have a percental healing, they heal 4% of your max HP each second (plus a 50 HP/s, so the low HP tanks heal faster). I don't think that a percental healing will be effective for creeps. And another thing, the Ghost Tank already has a healing aura as an ulti! It heals 56 HP at max level ...

4% hp per second is 40 hp/s for 1000-hp unit. And it is up to 100 hp/s for 2500-hp unit. That is not so little I think.
So, the final formula would be: 15 hp/s + 4%/s (or +3%/s — a question of testing).