I'm looking for information about the ability Swarm. I checked some wikis but don't have much detail.
"Extra damage when multiples attack"
Does that mean when I hit an enemy and I have swarm, my friends receive a bonus when hitting him shortly thereafter?
Or do I get a bonus when friends hit them?
Do we both need to have Swarm?
Do these bonuses apply to buildings? Gas? Bilebomb?
A dev answer would be great. The tooltip should be more informative in game too! Thanks