So, yesterday, I had the realization that the Familiar does not have an element fixed to it and therefore will not give damage bonuses with Enchantment Master.
I made a test with the Enchanter Glyph (plus 5 to max resistance on the element in the slot) and the bonus applied to Lightning Resistance regardless of the element of the Familiar in the bar.
Can someone confirm this interactions?
Does the Familiar enchantment slot is always Shock, for Enchanter Glyph and Enchantment Master?
On the skill bar it baselines to fire; everytime you re-instance (or at least it used too) but theyve had to mess with this skill alot since it came out, was very buggy
Wierd that it would go shock on enchant slot lol
Edit: just tested; in town it was shock at first, then i put it on the skill bar and both went pyro; no idea whats up 
lol, mine stayed on shock for the resistances.
I gave a look at the Enchantment Master interaction and ALL 3 damage types received the buff on the “Damage” section of the stats menu.
I will try to test today if this is just on the menu numbers or if it really buffs all the damages.
Obs 1: The Enchantment Master buffs 40% and 20% seems to be independent of one another. They multiply instead of adding up.
Obs 2: My elemental damage goes up to 13k with the combo Familiar Enchantment + Enchantment Master + Enlightenment
Wait i need to check something now.
Obs2 +
got me likeđź‘€
Edit: wow, familiar does give all three elements with enchant master. Ty for this!