Spell Tower — Clash of Clans
Buildings
Updated: 18 September 2026 · By the Goblins Farm team
The Spell Tower unlocks at Town Hall 15 and does something no other building does: rather than dealing damage, it applies a spell effect to attacking troops, and you choose which. That makes it the only defence whose behaviour changes based on a setting you control.
What it does
Four levels, a 2x2 footprint, and no damage-per-second figure in the files, because damage is not what it does. It applies an effect to attackers in range, selected by you from the available options.
Strategically this matters because it is configurable defence, in the same way an Inferno Tower's mode is. The right setting is not a preference, it is a response to what is actually beating your base, which you learn by watching defence replays.
Placing it
Where attacking armies concentrate, since an effect applied to two stray troops is wasted and one applied to a full push can decide the attack. That normally means covering the core compartments rather than the perimeter.
What we have not verified
Behaviour not yet verified in game. The figures above are read from the game files, so they are solid. The special behaviour of this building is not something the files state plainly, and we would rather leave a gap here than invent a mechanic. If you play at this level and can describe what it actually does, tell us and you will be credited.
How it looks at each level
Stats by level
| Level | Hitpoints | DPS or effect | Build cost | Build time | Town Hall |
|---|---|---|---|---|---|
| 1 | 2,500 | — | 9,000,000 Gold | 7 d | 15 |
| 2 | 2,800 | — | 11,000,000 Gold | 8 d | 15 |
| 3 | 3,100 | — | 12,000,000 Gold | 8 d 12 h | 15 |
| 4 | 3,200 | — | 27,000,000 Gold | 10 d | 17 |
| Town Hall | Available |
|---|---|
| TH15 | 2 |
| TH16 | 2 |
| TH17 | 2 |
| TH18 | 2 |
Where these numbers come from. Read from Clash of Clans' own game files, client build 18.600.3. They are exact for that build and do not reflect anything released after it, so verify in game before committing an upgrade.
Game values are read from Supercell's own game files, reproduced as fan content under Supercell's Fan Content Policy. Goblins Farm is not affiliated with, endorsed, sponsored, or specifically approved by Supercell, and Supercell is not responsible for it.
Frequently asked
What does the Spell Tower do?
Instead of dealing damage it applies a spell effect to attacking troops in range, and you select which effect it uses. That makes it the only defence whose behaviour you configure directly, alongside the Inferno Tower's targeting mode.
Which spell should my Spell Tower use?
Whichever counters what is actually beating your base, which you find by watching your own defence replays rather than by picking the one that sounds strongest.
Keep reading
Goblins Farm is not affiliated with, endorsed by, sponsored by, or specifically approved by Supercell. Clash of Clans is a trademark of Supercell Oy. This material is unofficial fan content produced under Supercell's Fan Content Policy. Game values change with every update; always verify in-game before committing an upgrade.