mrpeters, i`ll add menu for them. so you will able to sell them. but on other hand - plan your battllefield carefully =)
philnotfil, yes Lights towers affect all towers, and all heroes weapons.
Just rollOver mouse on hero stat bars for more explanations.
Goot point about aura, i`ll add tip about it. Basicly all aura powers called once per 2 seconds, and affect every enemy in green circle. (red - weapon range, green - aura range).
I have updated game easterday to 1.20 version(number written in preloaded in left-bottom), there is small changes to game, and Aura:Rage is changed to Aura:Stun.