I have 23 to demonic mastery. 10 base and 13 pluss skills.

I have 1 bind demon and hepasto is my demon.

If you have over 20 to demonic mastery mastery you can have 3 demons.

If I make a goatman and consumes him. I get extra life etc.

If I then make two defilers i will loose that extra life.

Does that mean that a consumed demon counts as a demon?

I guess so since I loose my bonus from consumed if I make 3 demons(hepasto pluss two defilers)

Also does it help to have two defilers? Does it infect monsters faster? Or can each defiler give the possibility to have more than 5 infected monsters?

What is best to do?

yes, consumed demon counts as a demon

2 defilers curse 10 enemies instead of 5 which means more clear speed

so you decide if you like extra clear speed or life/movespeed the most

Your setup is correct for MR. Summon a defiler, Consume a Goatman and have a dominated Hephasto with Cursed + Any of the Holy Fire/Freeze/Shock auras. for best results.

What does MR stand for?

Why not hepasto with fanatism and cursed?

aoe aura procs amp instantly = way more dmg than unreliable amp procs with fana

Hmm so if i can sneak into in a dragon armor or a dream helmet on merc it would do the same?