From Dota 2 Wiki
|A reviled blade that bites deeper with each wriggle of its victim's final throes.|
- One Bloodthorn grants a total of 30 attack speed, 275 mana, 1 (+150%) mana regeneration, 1.79% spell damage and 60 (85 to intelligence heroes) attack damage.
- Does not directly amplify damage as it is dealt, but rather saves all damage values and deals 30% of it 5 seconds after cast.
- The damage is applied as soon as the debuff expires. Dispelling the debuff, however, skips the damage entirely.
- Recasting Soul Rend on the same target refreshes the duration.
- Doing this delays the damage further, and gives more time to deal damage to the target.
- The damage is credited to the last caster of Soul Rend on the target.
- Only considers magical, physical and pure damage (after all reductions). Other sources of health loss are ignored.
- Applies Accuracy on the target, causing all attacks done against it to not miss to evasion or blind effects.
- The critical strike is only applied to attacks launched on a debuffed enemy. Previously launched attack projectiles are unaffected.
- In reverse, this also means that projectiles launched during the debuff still crit even when landing after it already expired.
- Together with the passive Critical Strike, increases attack damage against debuffed targets by an average of 47%.
- Shares cooldown with Orchid Malevolence.
- Bloodthorn deals heavy damage when combined with Searing Arrows. As such, Daedalus may be ignored as using Bloodthorn provides more DPS. Daedalus has a chance to crit while Bloodthorn guarantees crits when it has been used to silence the enemy.
- When combined with Bloodthorn, using Focus Fire against enemy heroes will trigger a rapid succession of crits.
- Bloodthorn's crit is a decent replacement or supplement to Nature's Prophet's other popular late game damage items.
- Bloodthorn provides a convenient upgrade to Queen of Pain's late game damage output, which falls off over time.
- Orchid Malevolence is a natural item for this hero and thus so is its upgrade; the huge damage increase from its active as well as passive means he is now able to crack tanky foes in the late game (Which he was previously unable to due to his damage output being largely magic based with static numbers), and crack down softer foes much quicker, reducing the amount of time the enemy team has to protect the squishies as well as the amount of time Storm must expose himself attempting to find kills.
- Bloodthorn is a viable alternative to a Daedalus on Weaver when facing heroes such as Phantom Assassin, for the true strike through her evasion, and guaranteed crit, as well as silencing to disable her blink and dagger abilities, or Tinker, to disable his nukes, and if necessary provide true strike through the Blind from his Laser. Keep in mind that the lower damage increase, critical damage amount and critical proc chance when the active is not applied is not as good on Weaver, so Bloodthorn should be used situationally only.
- Build the orchid first, it will provide good damage, mana regen and a powerful silence that enemies wont be able to purge early game.
- Bloodthorn's active accuracy counters evasion from any source, such as Butterfly or Blur, as well as blind effects from any source, like Laser or Blinding Light.
- Generally, Bloodthorn is a worthy upgrade for any hero that purchases an Orchid Malevolence or a Crystalys. It is arguably better than Daedalus because it guarantees crits of 140% damage with True Strike for your team, silences, chances to deal crits of 175% damage, and a 30% magical damage aftermath while Daedalus grants only chances to deal crits of damage.
- Some would prefer to go for a Scythe of Vyse or to buy it in combination because many items can remove the debuff and the enemy can still run away or use a Blade Mail during the effect.
- On average, attack damage is increased by 47% when the debuff is applied (due to both the debuff and the passive critical strike of the item). This will be further amplified by 30% as magic damage at the end of the debuff duration.
- Remember that Bloodthorn's active gives guaranteed crits along with a silence. Targets may still be able to escape with Shadow Blade or Blink Dagger before you could damage them.
- The ensured crits from Soul Rend work for all attacks done to the target. This includes attacks from wards, towers, fountains and even allies of the target.
- Casting it on a tower diving enemy makes them take much more damage from the tower.
- It is great when combined with Winter's Curse, because Soul Rend causes them to crit their cursed ally as mentioned.
- Instant attacks like Geminate Attack and Side Gunner can crit as long as they allow the carriage of attack modifiers. This prevents Split Shot and Flak Cannon from critting.
- Soul Rend does not allow crits from secondary spell projectiles or spell dummy units.
- You don't need to attack too much and chase or dive if you think the bonus 30 % damage at the end of the effect will be enough to kill the target.
- Desolator: the armor reduction will amplify the guaranteed crit of your entire team.
- Mjollnir: gives attack speed, can be combined with desolator and the lightnings will be amplified at the end of Soul Rend.
- Assault Cuirass: will increase the attack speed of your team and reduce the armor of all enemies.
- Mask of Madness: will increase your attack speed and you will regen a lot from lifesteal.
- Scythe of Vyse: will disable your enemy from purging Soul Rend or using blade mail.
- Blade Mail: will return critical strikes on enemies.
- Manta Style, Eul's Scepter of Divinity and Guardian Greaves: purge Soul Rend when used.
- Linken's Sphere: blocks Soul Rend, but some spells can be used to remove the Linken. Later in the game cheaps items like Force Staff can be used to remove it.
- Black King Bar: purge Soul Rend and make you immune but Soul Rend has a low cooldown so prefer using it during team fight.
- Shadow Blade: use it to escape from a gank.