Spell totem is very buggy. Please take a look at it.

I've tried various way to make it work , here what i found.
Unearth used by Spell totem will create buggy minions which appear standing still on your screen but actually do move.
Spell totem cannot use Detonate Dead on your minions with Sacrifice active.
Living Bomb used by Spell totem do not create Fire Infusion.

(Visual Glitch?) With Blackflame Covenant, Fire spells used by Spell Totem do not deal Chaos Damage.

Now i know why noone playing this skills. Not only it bothersome to use, it weak and buggy.