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Threshs passive lets him continually gain ability power and armor. This means he starts off weak, so play safe early game.
Dark Passage can let you collect souls without getting near them.
The death sentence is a great initiation tool. Consider if you want to pull the enemy towards you or if you'd want to pull yourself up to the enemy by casting it a second time.
The dark passage is a great ability to save an ally. Not only do you shield them, but you can allow them to escape if they click the lantern. This becomes very effective if you use it over walls. It also gives you vision, meaning you can safely check Baron and Dragon or check inside brushes. However, be wary of its long cooldown.
Dark Passage is also very useful to set up jungle ganks. Throw your lantern behind you or over a wall and have your jungler click it to pull himself to you. This syncs very well with junglers like Xin Zhao or Jax because they can dash/leap even further into the lane. They can also choose to use their gapclosers on the lantern itself.
the flay is a very good escape and chase tool, depending on the direction it is cast. Cast it backwards to slow and chase the enemy or cast it frontwards to slow the enemy from chasing you.
The box is very effective when used together with Death Sentence. First pull yourself to an enemy and then use The Box. Very effective when used in team fights, it often spreads the enemy team or puts one of them in a bad position.

Passive (Damnation) : Thresh does notgain armor per level. Instead, Thresh collects the souls of dead enemies bywalking near. Souls permanently grant armor and ability power.

Champions andlarge minions always drop a harvestable soul. Small minions only sometimes dropa soul.

Damnation is a passive ability that causes enemy units to leave their souls behind when they die near Thresh. Regular minions and monsters will sometimes leave a soul when they die. Enemy champions as well as large minions (siege minion or super minion) and large monsters will always leave a soul when they die. Thresh can pick up these souls by walking near them. Each soul gathered increases Thresh's armor and ability power.
The first soul will grant 1 bonus ability power and armor. Subsequent souls will grant 0.01 less, down to a minimum of 0.5 per stack. This will stack to 999999. [1]
The 0.5 minimum is reached at 51 stacks, granting 38.25 bonus stats.
It takes ~80-100 souls to catch up to the armor levels of other level 18 champions.
The spawn range is 2000 units.
The souls disappear after 20 seconds.
Souls are visible to your allies at all times. If an enemy can see you on soul spawn or at some point during the soul's existence, the soul becomes visible to the enemy team for the remainder of its existence.
On Summoner's Rift, the drop rate for souls from small minions is about 20%.
Souls are colored differently depending on the team Thresh is on.


Death Sentence (Q)(Passive): Thresh's basicattacks deal bonus magic damage on each hit. The damage value is equal to thetotal number of souls collected plus a percentage of his attack damage, basedon the amount of time since his last attack.
Maximum ADRatio: 80 / 110 / 140 / 170 / 200 %
(Active): Thresh throwsout his scythe, dealing magic damage to the first unit hit and pulling themtoward him for 1.5 seconds.
Thresh canreactivate this ability to pull himself towards the bound enemy.
Magic Damage: 80 /110 / 140 / 170 / 200 (+0.5 per ability power)

Active: When activated, Death Sentence is a collision linear skillshot that deals magic damage to the first enemy unit it hits, stunning for 1.5 seconds while Thresh pulls the target toward him. Additionally, after striking an enemy with the skillshot, Thresh may reactivate the ability to dash towards the affected unit instead of pulling it.
Death Sentence procs spell vamp and Rylai's slow similarly with all single target spells and abilities with full effect.
Death Sentence pops Spell Shield
Death Sentence will damage Black Shield and its effects will be negated.
Death Sentence can be used to dash over walls if Thresh reactivates the ability to pull himself toward the target.
Death Sentence cannot pull enemy units through walls.
Thresh can move while pulling his target.
Thresh can not autoattack until he either reactivates the ability or the duration of the grab ends.
Passive: Death Sentence passively causes Thresh's autoattacks to deal bonus magic damage equal to the number of gathered souls plus a scaling percentage of his attack damage. The attack damage ratio increases over time while Thresh is not attacking.
The passive will accumulate some bonus damage during the wind-up of each attack.
This means that further away targets will take slightly more damage than closer targets in a persistent auto-attack fight, although for the most part the difference is less than 10 magic damage.
The time it takes for the passive damage to fully charge is currently ~10 seconds.
Death Sentence's on-hit damage will not pop spell shield.
Death Sentence's on-hit damage will damage Black Shield.


Dark Passage (W)(Active): Thresh throws his lantern towards the target location for up to 6seconds. If an ally right-clicks it, they pick up the lantern and Thresh pullsthem both back to him.
For the next 6 seconds, allies who come near the lantern (even whileThresh is holding it) gain a shield lasting 4 seconds that absorbs damage.Allies can only receive the shield once per cast. If Thresh moves more than~1500 units away, the lantern will return to him.
Shield Amount: 60 / 100 / 140 / 180 / 220 (+0.4 per abilitypower)
Dark Passage is a ground targeted area of effect abilitythat places Thresh's lantern at the target location. Allied champions insidethe area of effect gain an absorption shield thatabsorbs incoming damage for up to 6 seconds. Allied champions may only benefitfrom the shield once per cast. Additionally, allied champions can click on thelantern to grab it and dash toward Thresh.
Dark Passage can be used by allies to dash over walls.
Thresh cannot click on the lantern himself.
Dark Passage can be used to collect the souls from afar. However its range in doing so is smaller than Thresh's range.
Thresh can break the leash range to instantly shield himself, if he has not been shielded by the ability already.
Katarina, Lee Sin, and Jax can use their gapclosers on the lantern.



Flay (E)(Active): Thresh deals magic damage in a linebeginning behind him. Enemies hit are pushed in the direction of the swing andthen slowed for 1.5 seconds.
Cast forward to push; cast backward to pull.
Magic Damage: 65 / 105 / 145 / 185 / 225 (+0.4 per abilitypower)
Slow Amount: 20 / 25 / 30 / 35 / 40%
Flay is an point blank line area ofeffect ability that deals magic damage to enemy units in a wide area in frontand behind Thresh. Enemy units hit will be knocked in the direction the abilitywas cast and they will be slowed for 1.5 seconds. For example, casting theability behind Thresh will cause all enemies in front of him to be pulledtoward him and enemies behind him will be pushed further back. Inversely,casting the ability in front of Thresh will cause enemies behind him to bepulled toward him and enemies in front of him to be pushed away.
Flay procs spell vamp and Rylai's slow similarly with all area ofeffect spells and abilities with diminished effect.
Flay pops Spell Shield.
Flay will damage Black Shield and the slow and knockback/pullwill be negated.


The box (R)(Active): Thresh creates a prison of spectral walls around himself. Enemychampions who walk through a wall take magic damage and are slowed by 99% for 2seconds, but break that wall.
Once one wall is broken, the remaining walls' damage and slow duration ishalved. An enemy cannot be afflicted by multiple walls.
Magic Damage: 250 / 400 / 450 (+1.0 per ability power)
The Box isa point blank ability that created 5 walls in a small area around Thresh. Thewalls do not move with Thresh, they remain at the location where the spell wascast. Enemy champions that walk through a wall take magic damage and are slowedfor 2 seconds, breaking the wall. After the first wall is broken, all remainingwalls deal half the original damage when walked through and slow for 1 second.
NOTE: The tooltipin-game says this ability slows for 99%. This may be an error and the actual slowamount still needs to be calculated.
Note thatmovement speed slows cannot be reduced below 110, and that slows that wouldreduce below 220 are modified. To put it another way: a reduction of 99% willnot reduce you to 3 movement speed, but rather it will reduce you closer to 110than a weaker slow would.
The Boxprocs spell vamp and Rylai's slowsimilarly with all area of effect abilities with diminished effect.
If achampion with a spell shield walks through a wall, the shield is popped and thewall will shatter.
The Boxwill damage Black Shield and the slowwill be negated. The wall will be destroyed in any case.
ActivatingThe Box creates the 5 wall around Thresh's current position, forming a closedpentagon.