perhaps changing traps to only 1 per area, (3 metres square?), but will trigger multiple times, for certain types or trap perhaps. relatively static battlegrounds like vishu square, temple of intorable, a ranger could lay a series of traps to weaken foes before/at merge
traps only trigger once at the moment, and can be stacked ontop of each other, i think.
other option i can think of to make trapping while moving forward to work is to use a skill like the corsair throwing net, but you somehow prepair the net/device, and then lob it at the enemey like a home made grenade
