[@rush99999]
Those dogs are doing quite a bit of damage for a bite. And since there are 4 of them...

A valid question raised here is are these dogs capable of autonomous actions?
Or are they being directed by someone to do their actions?

If the former, why are they intelligently splitting into two to attack 2 separate guards?
And why are they even attacking the guards in the first place rather than running past them?

If the latter, then what rules are we using here? Is it Animal Companion Rules with a Ranger? Or are they like hirelings?
Since Thanath has no proficiency in animal handling or nature, I'm wondering who trained these dogs to obey commands to attack.
I had originally assumed they were travelling companions, but now using them in combat seems a bit of a stretch given 1 animal friend is an feature of one entire class, let alone having 4...

Also I believe the equation you are using is wrong.

"Hit: 4 (1d6 + 1) piercing damage"

I think the 4 is actually the average damage, rather than a multiplier.
That is, 1d6 averages out to 3, add 1 for an average damage of 4 per successful attack.

It makes very little sense otherwise...
As taken as a multiplier, then a Skeleton with CR rating of 1/4 and has 13 (2d8 + 4) hit points...
and a sword slash from one does 5 (1d6 + 2)...