Let say you have a unit of 30 skeletons, and they have lost 15 figures, do you use the "summon" spell to try and summon back ones that have died? all it talks about under summoning is adding a new unit to the table which isnt free like adding models to a unit according to match play rules

2nd question, the way the rules are written it sounds like if you have a shooting attack you can shoot even if the unit is engaged in combat, so you can shoot and then melee if you are in a combat?

Thanks for any input.