63 items, 30 effects, lots of fun!
it effect the biter.
no the tooltip's buggy.
Swore they claimed this was fixed in 17.70.
Fixed wrong damage bonus values in tooltips of combat robots and units in a different force. (76182)
in my 55 hour game i have 8 points in damage/hour and the biters/spitters don't show any bonus damage (0.18.22)