Herald of Xotli: Feats (Avatar)

Fiery Weapons *****
Fiery Weapons results in a large increase in melee damage overall. The effect procs roughly 15% of the time. The Fiery effect can't crit as far as I can tell. Just think of it as a 20-25% bonus to your normal melee damage.

Conclusion: A necessary, but also very beneficial 5 point talent.

Improved Fiery Weapons *****
It adds a good damage improvement to your Fiery Weapons and adds Fiery Weapons for your whole group. Putting one point in it is almost essential, but after that the value drops into only "really good" as it continues to add about 20% more damage a point with 40% for the last point.

Conclusion: Increases your damage by a considerable amount while also increasing the damage of your group members, fantastic!

Spreading Flames ***
Your Burn to Death DOT damage has a chance to spread to nearby enemies. Sounds amazing, but currently the damage spread is only about 1/3rd of the original damage. Still, not bad.

Conclusion: Gives even more of a reason to use Burn to Death on stuff other than bosses, and also helps justify the incredibly long combo and wind up it has at 80 (most mobs are dead by the time you get it off).

Demonic Fortitude ***
Trades 10/15% mana for 15/20% stamina. Worth a spare point or two, but don't focus on it unless you have stamina issues.

Conclusion: Goes hand in hand with a large amount of natural mana regen and/or Demonic Leech, honestly not a necessity though.

Demonic Leech *****
Amazing... Body and Spirit Wrack is one of the Herald's strongest beneficial moves, if not the strongest, and the fact that it drains from the primary target and all secondary targets damage it is a must have for PVE (and probably PVP)

Conclusion: Necessary in my opinion, drains around 1900 mana per mob damage at 80, usually resulting in a huge excess of mana.

Rage of Xotli ****
A solid damage increase to Hell Strikes, +20% damage. A good boost to one of our fastest refreshing lowest stamina moves.

Conclusion: Hell Strikes is used a lot, thus an increase in overall damage to it will result in an overall DPS increase. Great way to spend 3 points.

Mindless Brute ****
Adds roughly 15% more hp.

Conclusion: Key for survivability when you're soloing, and helps a lot in every other situation.

Flame of Xotli *****
A solid damage increase to Burn to Death (15/30/55%). Burn to Death is a great combo, don't underestimate because the initial damage is mediocre. There's a high damage dot after that makes it one of our strongest combos.

Conclusion: Considering how amazing Burn to Death is in both PVE and PVP these 3 points are strongly recommended.

Reaching Flames ***
The range of Pillar of Infernal Flame is already pretty high. For solo PvE or PvP you will probably see almost no noticeable difference. For PvE or group PvP it would be nice to have.

Conclusion: Recommended for AOE farming only~ (and maybe sieges)

Demonic Supplication ***
Increases the length of your next Desecrating Essence by 45 seconds or Avatar of Xotli by 20 seconds. It is instant cast and lasts 2 minutes, so you can preemptively use it.
Downsides are a long 15 minute cooldown and a high mana cost (all at 3/3 points). It's rare for situation where you would ever need to transform that long, but it's not bad too have.

Conclusion: Only decent after all three points are spent, not even that helpful either.

Blood Pit ****
Chance to spawn a pool that heals the health of you and your party members after performing a fatality or "I Eat Your Heart" combo. Procs often and can proc over other Blood Pits to refresh the buff.

Conclusion: Awesome way to spend a point, unless you focus more on PVP.

Ether Thirst ***
The mana is still fairly insignificant. It's also tied to Demonic Fortitude which is simply mediocre.

Conclusion: More useful in PVP and longer PVE fights. (Such as Raids)

Fire Lance ***
Uses 500 stamina in return for a fast 4 swing combo at about 700-800 damage a hit. 3min CD

Conclusion: Still great in PVP, giving Heralds a quick burst of damage.

Wrath of Xotli ****
A 50% damage increase in the aoe aura of Desecrating Essence and Avatar of Xotli.

Conclusion: All around beneficial, a nice way to spend two points.

Improved Burning Skull **
Suffers from the weaknesses of Burning Skull. Mainly too high of a mana cost, too short a duration, and doesn't proc enough. Molten Flesh is so much better.

Conclusion: Really only beneficialy for AoE grinding, about it.

Demon Within *****
A 12 second increase to the length of Desecrating Essence. That's nearly 50% more time. A very solid talent which synergizes well with the other talents that buff our demon form nearby.

Conclusion: Gives a solid increase to damage and survivability in every aspect of the game.