Analysis: Optimal Spell Combo with Zeus

I've seen people ask this at least a few times. How do you deal the maximum amount of damage with Zeus? Most of the confusion is centered around his spell "Static Field", which deal 11% of the afflicted unit's CURRENT HP.

The answer is simply always lowest to highest damage for maximum damage. 

Here is an example:

Passive Spell Specifications:

• The damage from Static Field is dealt before the damage from the used spell
• 11% of current HP as magic damage

Target Hero Assumptions:

25% Magic Resist
2000 HP

Spell Damage/Cooldown at max level:

145 dmg / 2 sec CD --> 108.75 (post reduction)
350 dmg / 6 sec CD --> 262.5 (post reduction)
460 dmg / 120 sec CD-> 345 (post reduction)

Scenario 1:

Ult:    220*.75 + 345          = 165 + 345          = 510           // HP = 1490
Bolt:   163.9 *.75 + 262.5     = 122.925 + 262.5    = 385.425       // HP = 1104.575
Arc:    121.5 * .75 + 108.75   = 91.127 + 108.75    = 199.877       // HP = 904.697

Scenario 2:

Arc:    220*.75 + 108.75        = 165 + 108.75      = 273.75    // HP = 1726.25
Bolt:   189.8875 * .75 + 262.5  = 142.41 + 262.5    = 414.915   // HP = 1321.334
Ult:    145.345 * .75 + 345     = 109.01 + 345      = 454.01    // HP = 867.324

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It's also important to note that the order of Arc & Bolt should be discretionary.

For instance: if you have exactly 6 seconds and the target is low on HP (i.e. passive won't do as much damage), then you might want to go Bolt -> Arc -> Bolt because Bolt deals more than double Arc's damage.

E.g.1

• Target has 1000 HP remaining, 25% resist; Your skills are Max Level
• Arc -> Bolt -> Arc = 331.21 HP Left
• Bolt -> Arc -> Bolt = 189.105 HP Left (better option)

E.g.2

• Target is full health at 2000 HP, 25% resist; Your skills are Max Level
• Arc -> Bolt -> Arc = 1103.575 HP Left
• Bolt -> Arc -> Bolt = 961.46 HP Left (better option)

E.g.3

• Target is super buff at 3000 HP, 25% resist; Your skills are Max Level
• Arc -> Bolt -> Arc = 1875.932 HP Left
• Bolt -> Arc -> Bolt = 1733.81 HP Left (damn, still better option)

Other considerations:

• Your ult and Bolt grant True Sight in an AoE (900 respectively) and Grant Vision in an AoE (1000 for Day/Night) for 3 seconds
• Bolt mini-stuns