@AtACarnivorus: Exactly what J_Macc said! FB is here to boost your toughness and to proc gem. FB doing nothing in term of dmg, nothing :). I see it everytime when I die and gagrs are on CD.
@Nazgu83: If Enforcer is additive it will be bad choice because of MoJ bonus. If it is multiplicative (like BotT) then OK and it is a good choice.
I finish GR74 yesterday (rank cca 750 EU) with Taeguk and it is very good gem for this build. Even if you dont keep it on max stack whole rift, you can reach high stack with fight on elites (high HP) and big pack. And this build is need to be played with big packs, you must hunt mobs to large groups and then summon gargs in center of pyranado and wooow, brutal !!
@J_Macc: What kind of bonus is Enforcer? do you know? thx
Sorry I didn't see this sooner. Enforcer is additive with both elemental damage AND Mask of Jeram, so for damage we have better options. It's mostly used if you feel like your gargs are dying too much, while still giving some extra damage.
Bats are not the main source of damage, Gargs are by far the most damage.
Bats are there to activate Coils of the First Spider/Pauldrons of Channeling and stack Stricken and Taeguk quickly.