Is that your way of saying, im2msart4u, that you'd like further discussion on the Glider?
W.r.t. the Golem idea, I am sure that internal mechanics may be constructed in such a way as to make the forward acceleration of the bolt/arrow very fast, such that it will easily penetrate several people at once. Energy Golems will hit anything on the battlefield- very few units can get away from them. Hence, I don't really see as "I can hit it, but it can't hit back" as a requirement for a unit to be a golem. On the other hand, I don't mind whether the range is 1-2 or 1-3: as long as it's a ranged golem, the idea remains intact.