[3.6] Beasty TECTONIC SLAM GUARDIAN [tanky, fast and high dps] cheap to start! New Vid!

Weapon:
Doryani's Catalyst: is very good option for your weapon. Important is to get one with high attack speed, physical damage, crit and elemental damage.
Frostbreath: very bugdet friendly weapon which can be used early on while leveling. (Never use this weapon together with Elemental Focus Support)
Rare Mace: The best and most expensive option is a rare mace with high physical damage (+350), high attack speed (+1,65), high base crit chance (+7%) and some additional mods like critical strike multiplier.
Oni-Goroshi: you also can use Oni-Goroshi but careful then you have to adapt the skill tree a bit.

Shield:
Lycosidae: this shield is clearly best in slot but costs about 1ex atm. Just crazy good for your dps.
Chernobog's Pillar: Bugdet friendly option which provides good survivability and dps. The combination with the blind from the Bringer of Rain and Enfeeble is just too good.

Helmet:
Abyssus: best in slot for dps but with a big downside... it increases the physical damage taken which can be deadly in some situations. The guardian kinda can handle it but you will definitly die sometimes because it.
Starkonja's Head: Good for dps, clear speed and survivability.
Bringer of Rain: A really cheap way to get started... gives a 6-7 link with the downside that you cannot use a chest armour.

Body Armour:
Loreweave: Is imo best in slot for this build... high dps boost and up to +78% resistance cap!!!!!
Rare Chest: with high life and resistances

Boots:
Rare boots: with high movement speed (+25%), life and resistances

Belt:
Stygian Vise: High life, resistances and when you can afford it get some elemental damage with attacks.

Rings:
Rare Rings: with high life, resistances, physical damage to attacks, attack speed, elemental damage to attacks, life on hit and really nice to have is "warlord's mark curse on hit".

Amulet:
Rare Amulet: Life, resistances, physical damage to attacks, crit multiplier, gain physical damage as extra ..., damage penetrates elemental resistances (I searched for it like this: https://www.pathofexile.com/trade/search/Betrayal/d7L4ERsJ)

Jewels:
Rare Jewels: attack speed, crit multiplier and life
Watcher's Eye: increased critical strike chance with Hatred

When only have a few chaos left this setup will get you started. The "Bringer of Rain" will give you a 6-7 link for your Tectonic Slam and Frostbreath is a great weapon when you chill your enemies (don't use Elemental Focus Support). Chernobog's Pillar is a very cheap shield which will provide you with great surviviability early on. Instead of Rare gloves you also use Hrimsorrow gloves.

On Rare gear look mainly for:
> Life
> Resistances
> Physical damage to attacks
> Attack speed
> Crit Multiplier


Update your gear in following order:
1) Lycosidae
2) Doryani's Catalyst
3) Rare gear (check piece by piece and try to imrpove it if necessary)
4) Abyssus / Starkonja's Head + 5/6-links Loreweave

Main Damage:
Tectonic Slam > Multistrike > Concentrated Effect / Increased Critical Damage > Melee Physical Damage > Elemental Damage with Attacks > Elemental Focus
(Conc. Effect for hard bosses only)

Movement:
Shield Charge > Faster Attacks > Fortify

Mana Reservation:
Hatred + Herald of Purity + Enlighten + Minion Speed / Culling Strike

Cast When Damage Taken 1:
CWDT + Immortal Call + Summon Lighning Golem + Summon Holy Relic

Cast When Damage Taken 2:
CWDT + Molten Shell + Tempest Shield + Frost Bomb / Enfeeble

(Frost Bomb for a bit more dps in boss fights and Enfeeble can help to survive in some situations. Drop this setup when you use Bringer of Rain.)

Utility:
Vaal Haste (don't use normal Haste)
Vaal Ancestral Warchief
Blood Rage

I cannot sustain my mana... what can I do?
While leveling a thief's tourment ring is a good option which solve this problem. Later on you get mana leech from warlord's mark and with increasing damage normally mana should not be a problem. A jewel with mana gained on hit can be very helpful until you reach enough dmg to sustain you mana with leech.

Why ascendancy Guardian?
The guardian has great synergies with Tectonic Slam. All charges while boss fights, increases the AoE massivly and gives a lot of tankyness.