Thanks to Make It Sparkle I can turn Deathtrap's melee attacks into Shock elemental. Does he get my shock damage boost from Wires Don't Talk? Further, does he also get shock damage boosts from other sources like elemental relics?
However looking at the actual skill description for Wires Don't Talk.
It mentions you specifically, so that you lead me to surmise that it won't apply to anything else.
There doesn't seem to be much chatter on the Gearbox forums about these skills.