Level 12 Slayer^3.25

Notes

hillock reward has two choices: Splitting steel + chance to bleed, move towards using an axe.
OPTION 2: Buy Ground Slam (R) from nessa, begin the slam life. Its melee league come on. You'll use sunder at 12 anyways.
--------- ACT 1 --------
LVL 4: Get quicksilver flask: buy Pierce (G) if using splitting steel, buy Ruthless (R) if using Groundslam
After submerged passage:
Quest Reward: Blood And Sand (R);      Buy: War banner (R), Frost Blink (B)
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LVL 8: kill brutus: reward: Leap Slam; buy: faster attacks, Lifetap
buy: Intimidating cry (R), Precision (G), maim support (R)
optional: Enduring cry (R), and a second lifetap (ideally linked to frost blink as a 2 link, or level in offhand)
Skill links:
Splitting steel + pierce + maim (GGR)
OR
Ground slam + Ruthless + maim (RRR) 

begin using leapslam + lifetap + faster attacks (RRG); and frost blink for movement right before u land a leapslam.
War banner drop on bosses
Precision you keep leveling forever and eventually will link to arrogance (acquired at library quest, lvl 31) to reserve it on your life instead of mana.
Intimidating cry is for ground slam and will be used when we swap to sunder at level 12. use Blood and Sand in blood stance for more damage.
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LVL 12, before merveil: buy: Sunder. Use this now instead of splitting steel OR ground slam. This is what you will use until you swap to cyclone.
Sunder - Ruthless - maim (RRR)
--------- ACT 2 ----------
BANDITS: Help Alira for +15 all res, it will make gearing easier. This is equivalent to a t2 suffix freed up on the character.
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LVL 16: Fidelitas: Reward: Blood Rage (G)
buy: Herald of Purity (R), Poachers mark (G) [Poachers mark is super OP, see video]
optional: Molten Shell
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LVL 18: Melee Physical support
buy: Shockwave support (!!!! very important, start using instead of ruthless IF U HAVE A MACE OR STAFF. Look for maces and staffs instead of axes now and going forward. Level Shockwave in offhand until you can use it)
Skills now: Sunder - Melee Physical support - Shockwave  (RRR) ; if under mana pressure, can swap another lifetap in for melee phys
optional: Buy endurance charge on melee stun and level in off hand
--------- ACT 3 ---------
LVL 24: reward: Pride (level in off hand, or if u can fit in an extra red socket -- Use haste throughout zones then turn off haste for pride on things like act bosses)
buy: Haste (Use this to get through campaign faster) (G) 
We use poachers mark as our curse, don't waste money on vuln. if Broke, just use pride if you can't buy haste. Before entering maps you'll swap out of haste. Turn off herald of purity for mana issues or lifetap your attack; its similar damage.
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LVL 28: Reward: Cyclone (G)
begin leveling cyclone in your offhand/ spare green socket. DO NOT USE IT AT LEVEL 28. Keep using sunder for now. Cyclone needs a mace or staff for shockwave. It lost its flat damage now, so you need a decent mace or staff. if you get one, you can swap to cyclone as of level 35 after first lab. Cyclone will be a delivery method for shockwave for a while, but it will catch up. Sunder is objectively better than cyclone for a long time -- but cyclone IS playable and you're here to play cyclone. Trust me to wait until after first lab and you get 180% increase cyclone AOE.
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Dialla amulet reward: Take Lapis amulet. You need intelligence for the good staffs.
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LVL 31: Library quest: Reward: Arrogance. (Link this to precision to move it off mana reservation!!!)
Buy: Pulverise (level this off hand. gg link for cyclone shockwave)
--------- ACT 4 -----------
Congrats, you have completed act 3, entered act 4 town, then gone and done first lab to get Impact. You can now run cyclone at level 35 onward.
Cyclone - Lifetap - Shockwave (RRG) is your initial loadout. Add Pulverize for a 4th link. Add Endurance charge on melee stun as 5th for endurance charge gen mapping, and brutality or Melee phys as 6th link (or both if u can drop lifetap late game)
Other skills in order of socket priority:
Leap slam - Faster attacks - Lifetap (RRG)
Frostblink - Lifetap (RB)
Blood Rage (G) (Frenzy charges killing mobs)
Poacher's Mark (G) (This gives frenzy charges on bosses from mark mastery - these two give full frenzy up time)
War banner (R)
Precision - Arrogance (RG) (flat life costing aura)
Haste (G) OR Pride (R) (50% aura)
Blood and Sand (R) (10% aura)
herald of Purity (G) (25% aura)
Molten shell (R)
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LVL 38: entering belly of beast quest: Buy: brutality (begin leveling offhand)
OPTIONAL Buy: Mark on Hit Support (to link to poachers mark). One less button to press, but reduces the flat phys added from poachers mark.

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ENTERING MAPS on a 4 link, if your instant mana leech feels fine your cyclone links will be:
Cyclone - Shockwave - Pulverize - Endurance charge on melee stun.
if the mana leech is not sufficient and you lifetap
Cyclone - Shockwave - life tap - Endurance charge on melee stun.
The full uptime of your 7 endurance charges when mapping is paramount. You'll generate from killing and stunning when mapping; and using enduring cry when on bosses to prevent them from falling off.
Swap off haste for determination or grace (your choice in defenses), keep leveling pride in off hand. leveling up and not dying is better than using pride early