Cassia Abilities and Strategy

Last updated on Aug 24, 2019 at 20:20 by Straften 13 comments
General Information

Welcome to our Abilities page for Cassia. Here, we give you an overview of every ability in Cassia's kit. For each of them, we explain what it does, how to best use it, and how it works in combination with Cassia's other abilities. We also give you strategy tips to play Cassia efficiently.


Cassia's Tips and Tricks

  • Cast Lightning Fury Icon Lightning Fury perpendicularly toward enemy Gates to damage all of the Structures connected to the Gate.
  • Cast Blinding Light Icon Blinding Light over intended targets to increase your damage, and provide self sustain via Ring of the Leech Icon Ring of the Leech.
  • Use Fend Icon Fend to assist with waveclear, execute low Health enemies, or to follow up Ball Lightning Icon Ball Lightning.
  • Use Ball Lightning Icon Ball Lightning to duel enemy Heroes in melee range, or during team fights when enemies are clumped together.
  • Avoidance Icon Avoidance will benefit you any time you are moving, and will persist while stutter stepping.
  • Valkyrie Icon Valkyrie is a great tool for interrupting channeled Heroic Abilities, due to its very low cooldown.

Ability Avoidance (Trait)

Cassia Avoidance
Avoidance (D) Diablo Cassia
  • Cooldown: 0.25 seconds

While moving unmounted, Cassia gains 40 Physical Armor against Heroic Basic Attacks, reducing the damage taken by 40%.

Avoidance Icon Avoidance will benefit you while you are moving, and will remain active while stutter stepping. Try to maintain this effect as much as possible. It will simply reduce damage from Heroic Basic Attacks, provided you continue moving. It is important to understand that Avoidance will not reduce damage from enemy Abilities, or from non-Heroic sources.


Lightning Fury

Cassia Lightning Fury
Lightning Fury (Q) Diablo Cassia
  • Mana: 30
  • Cooldown: 4 seconds

Hurl a lightning javelin that deals 175 (+4% per level) damage to the first enemy hit and splits into two lightning bolts that deal 175 (+4% per level) damage to enemies in their path.

Lightning Fury Icon Lightning Fury has more range than any of Cassia's other Abilities. This makes it a great tool for poking enemies from relative safety. While it is the primary Ability in builds focusing on improving it, it is useful in a variety of ways in any build. Playing the Lightning Fury build is a good way to become comfortable with the Ability. This familiarity will allow you to use it more effectively in general.

Whenever using Lightning Fury, it is important to think about the secondary lightning bolts. One of the most Mana efficient uses of this Ability is to cast it perpendicularly toward enemy Gates; doing so will cause the lightning bolts to damage all of the Structures connected to the Gate. Lightning Fury can be used effectively for waveclear, as long as several Minions will be hit by the resulting lightning bolts. The lightning bolts can even secure kills on low Health enemy Heroes, who would otherwise be protected from the linear path of the main lightning javelin.


Blinding Light

Cassia Blinding Light
Blinding Light (W) Diablo Cassia
  • Mana: 70
  • Cooldown: 15 seconds

After 0.5 seconds, deal 50 (+4% per level) damage and Blind enemies in the target area for 2 seconds.

Passive: Cassia deals 20% increased damage to Blinded targets.

Blinding Light Icon Blinding Light should be primarily thought of as a damage buff for yourself. This is because it has a high Mana cost and Cooldown when compared to Cassia's other Basic Abilities. This cost is generally worth it if you force an enemy Hero to retreat, or get a kill. Because Blinds increase Cassia's damage through Blinding Light's passive component, they also increase healing generated by Ring of the Leech Icon Ring of the Leech. This is another reason to think of the Ability as a damage buff first, and as a defensive Blind second. While you should save allies with the Blind whenever possible, defensive uses should be followed by damaging Abilities when it is safe to do so.

One of the best uses of Blinding Light is to cast it just before Fend Icon Fend. This combination will result in a lot of damage and healing with the recommended builds; this is especially true when the victim's low Health will trigger Impale Icon Impale's bonus damage. Fend can deal constant damage throughout most of Blinding Light's duration. This is in contrast with Cassia's other Basic Ability or Basic Attacks, which will not usually deal as much damage during the short Blind. While Charged Strikes can hit multiple Blinded enemy Heroes, the same is true for Fend.



Cassia Fend
Fend (E) Diablo Cassia
  • Mana: 40
  • Cooldown: 8 seconds

Charge at an enemy, and upon arriving channel for up to 1.5 seconds, dealing 78 (+4% per level) damage to enemies in front of Cassia every 0.25 seconds. Deals 50% reduced damage to non-Heroes.

Fend Icon Fend is Cassia's best tool for waveclear. While it is extremely good for executing low Health enemy Heroes with Impale Icon Impale, it does so while placing Cassia within melee range of her target. This means that it must be used on Heroes situationally, and not all of the time. When there is not an opening to use Fend on an enemy Hero, it can be very useful for clearing Minions and Mercenaries quickly. Remember that Impale Icon Impale's bonus damage can also work on non-Heroic enemies.

You will be unable to cast other Abilities while channeling Fend, so it is best to cast Ball Lightning Icon Ball Lightning and Blinding Light Icon Blinding Light on your intended targets first. Interrupting Fend early can prevent most of its damage; it is important to use it when enemy interrupts are unavailable.


Ball Lightning

Cassia Ball Lightning
Ball Lightning (R) Diablo Cassia
  • Heroic
  • Mana: 60
  • Cooldown: 60 seconds

Throw a ball of lightning at an enemy Hero that bounces up to 6 times between nearby enemy Heroes and Cassia, dealing 180 (+4% per level) damage to enemies hit.

Ball Lightning Icon Ball Lightning is an amazing Heroic, with a very low Cooldown. It can be used to duel enemy Heroes who are isolated. It is best used after you cast Blinding Light, and just before you cast Fend. This will usually result in the enemy Hero retreating, or dying. In team fights it can be risky to follow up Ball Lightning with Fend, as there will be many enemy Heroes to counter-engage on you. Instead, focus on casting Ball Lightning on enemy Heroes who are tightly grouped up for the team fight. If the enemies disperse in an attempt to stop the Ball Lightning from bouncing, you may be able to pick off an isolated enemy with Fend. If you time Fend correctly, you can sometimes even keep the ball bouncing between the isolated enemy and Cassia.



Cassia Valkyrie
Valkyrie (R) Diablo Cassia
  • Heroic
  • Mana: 60
  • Cooldown: 60 seconds

Summon a Valkyrie that rushes to Cassia after 0.75 seconds, pulling the first enemy Hero hit, dealing 225 (+4% per level) damage and Stunning them for 0.5 seconds at the end of her path. The Valkyrie knocks back all other enemy Heroes in her way.

Valkyrie Icon Valkyrie is a niche Heroic, as its long delay makes it easy to avoid unless the intended target is already controlled. If there are channeled Heroics on the enemy team, Valkyrie can be a great way to interrupt them. In other words, this is most useful as a "Mosh Pit Icon Mosh Pit-stop". Due to Valkyrie's low cooldown, it performs very well for this purpose.

Other than interrupting channeled Heroic Abilities, Valkyrie offers little that Ball Lightning does not do better. This Heroic can also be useful on team compositions that are designed around getting picks, but Ball Lightning gives you the burst damage required to solo kill most Heroes willing to duel you. Some teams may have several bruisers that have too much Health to duel and kill on your own. Valkyrie may work in some of these scenarios, as it can help your team to isolate and kill a bruiser. The challenge with recommending this strategy is that most bruisers have a Basic Ability they can trade to avoid the Valkyrie. Ball Lightning is more reliable, and has much higher damage potential per cast.



  • 24 Aug. 2019: Guide reviewed to ensure meta relevance.
  • 21 Apr. 2017: Valkyrie discussion has been updated to account for its greatly reduced cooldown.
  • 14 Apr. 2017: Expanded explanations and strategies.
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