Hmm, thanks for the good answers guys, so looks like collateral damage isnt affected by non-barrage promotions. I have another question however. Would a damaged catapult do as much collateral damage as a healthy one? SPQR300 above mentioned that collateral dmg is based on the "base strength" of the cat, but is that natural base strength (5), or current base strength? (could be damanged down to 1.5 for example).