Oakmontowls_ESO wrote: »They will be buffed by the same things that buff your attacks. Any direct damage (scamp's basic attacks) will be buffed by master at arms. Any damage over time (scamp's pulse attack) will be buffed by thaumaturge. All magic and elemental damage will be buffed by elemental expert. All your crit able damage is buffed by elf born. And finally spell erosion allows your damage to ignore part of the target's defense.
Oakmontowls_ESO wrote: »Except for Familiar and Twilight basic attacks, which aren't amplified by any CP stars. Although they are still buffed by bonus magicka.
More information you can find here (outdated for Atronach).