Ritualist walks around with pets. Five pets. And has the highest possible health of all builds. And does not depend on gear at all. And casts a spell once every 8 seconds. Meanwhile, when not casting anything, Ritualist just loots around. That's it...
Heart Of Oak
Since you have the Nature mastery, the aura Heart Of Oak gives you and your pets 100% increased health points. Now you have even more health! Your pets too! You are all pretty much un-killable. Besides, Heart Of Oak aura has an improvement that gives you elemental resistances, so you're defensive as #$%&!
Regrowth: grab some healing for your wolves by using the Regrowth spell
Plague - Did you ever want to cast a spell on all enemies that slows them all down, takes away a chunk of their health, and makes them vulnerable and unable to resist damage? Look no more! Plague and its improvements do exactly this! You know that Secret Passage, when Hades drops Overlord quest item on normal, with bosses in cages? You can kill bosses in cages just by Plague if you want to! :D
Nymph - Did you ever want to have a cute little girlie jumping around you like crazy, laughing as if she was crazy, and shooting arrows at a nearest rock when trying to actually shoot at the nearest enemy? You did? Look no further then - the Nymph is here! She also casts protective shields on allies, so you're all even more tanky XD
Nightmare - Casts confusion on enemies, so they wonder around not fighting. Also boosts damage of all your pets. By a lot!
Trance Of Empathy aura from the Dream Mastery: you all reflect damage now. Will reflect up to 85 % of physical damages to the ennemy. Your pets are affected, them being hit will result sending back 85% of the physical attack damage to the ennemy. This again, indirectly buffs the DPS of your pets.
What to look for? Well, main damage of wolves is physical, so look for anything that gives Bonus To Pets: plus damage, especially + percentage of damage! Damage means physical damage in Titan Quest.
So I suggest boosting physical damage. Although, wolves do some bleeding damage too, and Nymph does some elemental damage as well. But most of your damage is physical, coming from wolves' basic attacks.
There are the 3 quests, one at every difficulty, that give your pets +100% health points! The Yeti quests! Do them all!
To control your pets, assign in options keybinds mouse wheel = middle mouse to select all of your pets. The boss starts casting some #$%& on you? Middle mouse select all of your pets and click them away!
On boss fights run straight to a boss, cast plague on him, and run around boss at a distance. Boss will be hitting you, not your pets, and since you're moving around at a distance, you actually don't get hit. Heal pets with Regrowth, and cast plague on boss whenever available. That's it! works like a charm every time! To heal pets, press the key on keyboard to use Regrowth healing spell, and then left click mouse on top of the icon of your most injured pet; pet icons are top left corner of your screen, beneath your icon.
I keep all of my pets on aggressive, except the Nymph on normal. Just right click each pet's icon on the left, and left click on drop-down menu.
If you want to, you can depart from the core build, and add your own flavor to it! Some useful spells to add are:
1 - Distort Reality, from the dream mastery. It's a 1 point wonder. At 1 point you can stun all enemies around you for the duration of 1.5 seconds every 12 seconds.
2- Distortion Wave, from the dream mastery again. It slows mobs in front of you. Not a 1 point wonder, though, it takes more points to make it shine.
3 - Sands Of Sleep, puts a single enemy to sleep every 4 seconds.
4 - You can skip Nymph, and invest points into any of the above spells. Or, invest points into Briar Ward from nature mastery. It protects you for a while, punishing attackers by poisoning them.
There are of course other ways you can spice it up I haven't even thought of!
There's the trick to get even more health... Say, you have gear N that requires 500 strength and also provides -30% requirements itself. Suppose you also have some other gear already on you that provides -20% requirements as well. So, if you could equip N, you'd have -50% requirements. The problem is -- you waste points on strength if you equip N... Fear not! Use attribute points to raise strength up to 250 points. Make this permanent. Now raise strength points further up to 500 points. You can equip N now! Now that it's equipped, you have N's -30% requirements on. Now click on UNDO to get your points back! You have 250 strength now again, not 500 any more. But look -- N is still active on you, because it's requirements reduction still counts! And you saved 250 points! Each attribute point increases Strength, Intelligence or Dexterity by +4 points and Health and Energy by +40 points. So saving 250 strength points gives you an additional 2500 health! Yes, you can re-log, the N armor will still be active on you!
This is it! Enough strength to equip the largest shield you can find, the rest into health! With the giggling crazy bitch beside you, and a nightmare who confuses your enemies! There are 3 wolves too, just in case...
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Acually, I'd still prefer the dream/spirit build. Siphon life with +max health and mana regin gear and max recast reduction and mana cost reduction. Also casting speed. Spam cast it and walkthrough the game never seeing your health bar drop below 99% while everything else is dies In seconds from having there health sucked away.
Honestly dont need pets with this build.