Raijin Thunderkeg, the Storm Spirit, is one of the most mobile and high-tempo Intelligence-based assassins in DotA 1. With an exceptional +3.9 Intelligence growth, Storm Spirit excels at weaving in and out of combat, turning every spell cast into an explosive burst of mobility and damage. His ability to zip across the map makes him an unparalleled ganker, capable of isolating targets and obliterating them before they can react, while his passive ability ensures that his physical attacks are just as punishing as his magical spells.
2. Base Stats & Attributes
Hero Attributes
| Attribute |
Base Value |
Growth (per level) |
| Strength |
21 |
+2.0 |
| Agility |
22 |
+1.7 |
| Intelligence |
23 |
+3.9 |
Statistics & Mechanics
| Statistic |
Value |
Mechanic |
Value |
| Damage |
49-59 |
Base HP Regen |
0.25/s |
| HP |
620 |
HP Regen |
+2.35/s |
| MP |
326 |
MP Regen |
+1.16/s |
| Armor |
5.1 |
Turn Rate |
0.8 |
| Move Speed |
285 |
Base Attack Time (BAT) |
1.7 |
| Attack Range |
480 (missile: 1100) |
Attack Animations |
0.5 / 0.3 |
3. Hero Skills Breakdown
1. Static Remnant
Raijin creates a temporary remnant of himself imbued with his electrical essence. This remnant sits in place, waiting for an enemy unit to wander into its immediate vicinity, at which point it releases its stored energy in a damaging burst.
- Damage Type: Magical
- Unique Behavior: Remnant remains active until triggered or until the duration expires
| Level |
Magical Damage |
Cooldown |
Manacost |
| 1 |
120 |
3.5 seconds |
70 |
| 2 |
175 |
3.5 seconds |
80 |
| 3 |
230 |
3.5 seconds |
90 |
| 4 |
285 |
3.5 seconds |
100 |
2. Electric Vortex
Storm Spirit focuses his internal electrical energy to rip open a localized vortex, pulling a targeted enemy toward his current position.
- Mechanic: Forced displacement (Pull)
- Aghanim's Scepter Upgrade: Transitions the skill into an area-of-effect pull, removing the need for a single primary target
| Level |
Pull Distance |
Pull Duration |
Cooldown |
Manacost |
| 1 |
100 units |
1.4 seconds |
16 seconds |
60 |
| 2 |
150 units |
1.8 seconds |
16 seconds |
70 |
| 3 |
200 units |
2.2 seconds |
16 seconds |
80 |
| 4 |
250 units |
2.6 seconds |
16 seconds |
90 |
3. Overload
Storm Spirit becomes electrically overloaded whenever he casts a spell. This charge is stored and released upon his next basic attack as a burst of energy, which damages and slows all enemies within the immediate radius of the target.
- Damage Type: Magical
- Area of Effect (AoE): 300 radius
- Debuff: 80% movement speed slow; 80 attack speed reduction
- Debuff Duration: 0.7 seconds
| Level |
Magical Damage |
Cooldown |
Manacost |
| 1 |
40 |
Passive |
0 |
| 2 |
60 |
Passive |
0 |
| 3 |
80 |
Passive |
0 |
| 4 |
100 |
Passive |
0 |
4. Ball Lightning
Storm Spirit discards his physical form to become a ball of pure electrical energy, traveling across the map until his mana pool is depleted or he reaches the targeted destination. During this travel, he deals magical damage to any units he passes over.
- Damage Type: Magical
- Scaling: Damage, movement speed, and area of effect scale based on the level of the ability
- Mechanic: Consumes initial mana cost plus a percentage-based drain over distance traveled
| Level |
Damage (per 100 units) |
Movement Speed |
AoE Radius |
Cooldown |
Manacost |
| 1 |
8 |
1400 |
200 |
0 seconds |
Initial: 30 + 8% MP / Per 100 dist: 10 + 0.65% MP |
| 2 |
12 |
1850 |
200 |
0 seconds |
Initial: 30 + 8% MP / Per 100 dist: 10 + 0.65% MP |
| 3 |
16 |
2300 |
200 |
0 seconds |
Initial: 30 + 8% MP / Per 100 dist: 10 + 0.65% MP |
4. Item Build Guide
| Phase |
Recommended Items |
Strategic Purpose |
| Early Game |
Bottle, Arcane Boots, Soul Ring |
Bottle provides lane sustain and rune replenishment; Arcane Boots and Soul Ring manage the heavy mana costs required to keep Overload stacks active. |
| Core Items |
Orchid Malevolence, Kaya, Bloodstone |
Orchid provides essential disable and damage; Kaya reduces mana costs for spells and Ball Lightning; Bloodstone is mandatory to sustain your massive mana pool. |
| Late Game |
Scythe of Vyse, Linken's Sphere, Shiva's Guard |
Scythe of Vyse locks down high-priority targets; Linken's Sphere blocks game-ending disables; Shiva's Guard provides tankiness and an extra slow. |
5. Quick Gameplay Tips
- Spell-Attack-Spell Rotation: Your damage output is tied to your ability to proc Overload. Always cast a spell (like Static Remnant) before jumping in to attack. The most effective combo is: Remnant -> Zip (Ball Lightning) -> Attack -> Vortex -> Attack. This ensures you reset your Overload charge between every major move.
- Mana Conservation: Ball Lightning consumes mana based on distance. If you are chasing a target, do not zip directly onto them if they are near a cliff or tree line; instead, zip to a point where you can trap them, then immediately drop a Static Remnant. This saves you from overshooting and depleting your mana pool unnecessarily.