Added to Homebrews.
I renamed the unusual poison to "venom", since it doesn't strictly follow normal poison rules (and, with poison use, to differentiate it on the attack lines).
The venom seems nice but requires a lot of bookkeeping. Could we simplify it somehow by turning some aspects of it into a disease maybe?
Fine by me, but just to be on the safe side you'd better add "Any spells or abilities that resist poison will affect a tartalla's venom, such as neutralize poison or a dwarf's racial bonus on saves versus poison."
I'm fine with simplifying it a bit, but disease doesn't feel right.
Some thoughts: not sure if the Con damage is strong enough, and I'd consider swapping the Str damage for Dex like in the original.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.