Overview
The Thunder Stone evolves Sparkpup into Thunderfang, the fastest EvoMon in the game. This guide covers Thunder Stone locations and farming strategies.
Thunder Stone Overview
The Thunder Stone is an Electric-element evolution stone that triggers:
- Sparkpup → Thunderfang (B-tier → A-tier)
Thunderfang has the highest Speed stat (120) in EvoMon, making it essential for PvP and speed-based strategies.
Thunder Stone Locations
| Source | Location | Drop Rate |
|---|---|---|
| Wild EvoMon | Lava/Jungle Island | ~3% |
| Boss fights | Various | ~10% |
| Evolution Item Shop | Varies | 2,500-5,000 coins |
Thunder Stones have a lower wild drop rate (3%) than other stones. Boss fights are the most reliable source.
Farming Strategy
Thunder Stone farming approach:
- Daily boss runs — All bosses have ~10% Thunder Stone drop
- Lava Island wild battles — Battle Electric-type spawns
- Jungle Island — Secondary wild farming location
- Shop purchase — If available and affordable
Thunder Stones are slightly rarer than Fire/Water stones, so expect 4-5 boss runs.
Sparkpup → Thunderfang Evolution
When you get a Thunder Stone:
- Teach Sparkpup all desired pre-evolution moves
- Level to at least Level 15
- Use the Thunder Stone
- Sparkpup evolves into Thunderfang
Thunderfang's stat gains: Attack +40, Speed +50, Sp. Attack +35. The Speed stat of 120 outspeeds every other EvoMon, guaranteeing first strike in PvP.
Thunder Stone Tips
- Thunderfang is the fastest EvoMon — it always moves first
- Critical hit builds on Thunderfang are devastating in PvP
- Pair Thunderfang with Ground-type coverage for Electric immunity
- Sparkpup is a starter EvoMon — you should have one from the beginning
- Thunder Stone is 3rd priority after Fire and Water stones
Frequently Asked Questions
Can anything outspeed Thunderfang?
No, Thunderfang's Speed 120 is the highest in the game. Priority moves can bypass speed, however.
Is Thunderfang good for boss fights?
Thunderfang's speed is useful, but its relatively low Defense makes it fragile in boss fights. Use it as a revenge killer.
Why is the Thunder Stone rarer?
The lower drop rate (3%) is balanced by Sparkpup being a free starter choice.