Because that's what does the most single target damage on any pet. Therefore anything else does less.
All pets live off of mana regen when the mana drops to zero the pet does not lose its damage production.
The need to have a pet do "less" rather then more, in order to have it not waste Mana on a number of things and so not have enough for what the Tamer might want the pet to do, I do have seen it as reported in several posts and Tamers' Threads.
So, I got that.
Nonetheless, if Mana is the "big" issue when it comes to a pet delivering as much damage as possible for the longer time, my question is, "if" the Intensity of the pet was to sustain a 2nd special ability, why not then, for example, at least add Mana Drain or Concussion Blow which also both gets Mana to the pet ?
Yet, I see no Triton build that recommends the use, where possible, of Mana Drain or Concussion Blow as a 2nd special.....
Most builds either pick FWW, or Armor Pierce, or an Aos (Goo seems to be the most preferred one...) and Conductive Blast...
There is also discordance of opinions, I tend to see, which make things, particularly for an inexperienced Tamer, confusing....
For example, one of the Triton builds using Feint in the Thread that you mention, also considers Armor Ignore. The Guide for Tritons' training on UO CAH, when it comes to the Feint build, mentions that it is best to not put anything else along with Feint to precisely avoid the Triton use less Feint to do something else.... so, an inexperienced Tamer that wanted a Tanking triton which Feint, which build should follow, the one that also has Armor Ignore or the one that only uses Feint ?
Another example, in the Triton builds Thread, in this Post here
Triton Builds it is indicated that a higher Resisting Spell (170+) might grant immunity from debuffing spells from most MoBs to 120 Mage/Eval debuffs/poison.
And here
Triton Builds , it is better explained
Yeah, when the target has 50.0+ more Resist than the caster has Eval/SS (for most debuffs) or Magery (for Poison), then the spell has 100% chance to fail, and it just flat out fizzes when attempting to cast on such a high Resist target. At 170+ Resist, the pet is basically immune to debuff spells and the Poison spell, since VERY few creatures have above 120 Magery/Eval. Basically only the Abyssmal Horror (200 Magery/Eval) and Shimmering Effusion (150 Magery/Eval) have a chance of debuffing such a high Resist target.
Yet, in this other Post here
Triton Builds , someone else says differently....
120 Eval vs 190 Resisting Spells will still debuff for 1%, which means a Chiv pet will still spend mana to use Remove Curse.
For a debuff to actually fizzle, it needs to hit 0% potency (Which ends up being 80 skill difference).
So, what should an inexperienced Tamer conclude ? That having a Triton with very high Resisting spells, higher then 170 is important because it gives immunity to 120 Mage/Eval debuffs/poison, or it is not a stat that is so crucial to have since, even at 190 Resisting Spells, 120 Mage/Eval MoBs will still debuff the Triton and thus cause it to have to use Mana to counter the debuff ?
What I am trying to say is, that I a finding it really difficult to find informations which can help an inexperienced Tamer to actually be able to start the training of their pet without worries that they might be actually ruining it.....
For lower or average intensity pets, it is not a big issue, I imagine, but what about higher intensity pets which are hard to come by and require a whole lot of work to get ?
As we know, a pet's training cannot be reverted, once a mistake is done, it unfortunately stays with the pet....
So, especially for high intensity pets, harder to come by, a whole lot of causiousness and worries are normal, I would imagine... and different opinions on builds, even from experienced Tamers, surely do not help making up the mind on what Training to follow.... there is always the worry to have made mistakes and irremediably have ruined a high intensity pet build that cost so much work and time to come by....
I doubt any recommend repel.
Well, in this post here
Repel or Searing Wounds? , it is mentioned
Repel does reduce incoming damage when active. Searing Wounds is mostly useless in my opinion. Graping Claw can be good, but it depends on the pet and what you are fighting.
Now, I do not understand whether, from reading the sentence, it merely indicates what Repel is supposed to do (reduce incoming damage when active), or whether it might or nor intend to indicate that Repel might be something one might want to have on a pet's build....
Life Leech, for example, I saw this Post from
@PlayerSkillFTW here
Life Leech. where I seem to understand that this Special Ability can be a good addition to pets like a Saurosaurus, or an Ossein Ram, for example.... It is necessary though, to remember not to use pets with Life Leech against MoBs with Corrupted Life, for example Osiredon the Scalis Enforcer or Corgul, because then, their Life Leech would end up damaging the pet.
So, an inexperienced Tamer might wonder, for a tanking Triton with Feint, and enough training points to add another Special Ability, would Life Leech be a good addition ? Yet, the Triton training Guide on UO CAH Web site, for example
Triton Training Guide | uo-cah.com , when it describes the Feint build, specifically says
As tempting as it may be, do not add Armor Ignore or any other abilities to the pet. You want Feint and only Feint to be used as much as possible.
What I am saying is, that maybe for you guys experienced Tamers all might seem clear and easy.... but to an inexperienced Tamer like me, it is all VERY confusing with so many varied and different opinions on pets' Builds..... and when it comes to having to train up high intensity pets which are hard to come by and take a lot of work and time to find, the concern and worries to make mistakes which cannot then be reverted, is sky high.....