Life Gem is a default hero equipment available to the Grand Warden in Clash of Clans. You gain access to Life Gem when you reach Town Hall 11 and unlock the Grand Warden. Life Gem provides a “Passive Ability” to the Grand Warden, and the effect of this ability is activated for all troops within the Grand Warden’s aura.
When troops are inside the Grand Warden’s aura, they receive a hitpoint increase, which is a percentage of their actual hitpoints. The hitpoint increase they receive depends on the level of the Life Gem.
Life Gem Max Levels
Here are the max levels of Life Gem equipment:
- Life Gem has a max level of 12 at TH11.
- Life Gem has a max level of 15 at TH12.
- Life Gem has a max level of 18 at TH14.
Life Gem is a common type of hero equipment, so it can reach a maximum level of 18. You obtain the first 12 levels of the Life Gem at Town Hall 11, followed by three additional levels at Town Hall 12. Afterward, it can be maxed out at Town Hall 14. Life Gem has no new upgrade levels at Town Hall 13, 15, and 16.
Life Gem Upgrade Cost & Statistics
| Level | Hitpoints Increase Percentage | Max Hitpoint Increase | Damage Per Second Increase | Hitpoints Increase | Shiny Ore  | Glowy Ore  | Blacksmith Level Required | Town Hall |
|---|---|---|---|---|---|---|---|---|
| 1 | 40% | 275 | 10 | 150 | – | – | 1 | 11 |
| 2 | 40% | 275 | 12 | 163 | 120 | None | 1 | 11 |
| 3 | 50% | 350 | 14 | 172 | 240 | 20 | 1 | 11 |
| 4 | 50% | 350 | 16 | 181 | 400 | None | 1 | 11 |
| 5 | 50% | 350 | 18 | 192 | 600 | None | 1 | 11 |
| 6 | 60% | 425 | 20 | 203 | 840 | 100 | 1 | 11 |
| 7 | 60% | 425 | 22 | 225 | 1120 | None | 1 | 11 |
| 8 | 60% | 425 | 24 | 249 | 1440 | None | 1 | 11 |
| 9 | 70% | 500 | 28 | 275 | 1800 | 200 | 1 | 11 |
| 10 | 70% | 500 | 32 | 304 | 1900 | None | 3 | 11 |
| 11 | 70% | 500 | 38 | 336 | 2000 | None | 3 | 11 |
| 12 | 80% | 575 | 42 | 351 | 2100 | 400 | 3 | 11 |
| 13 | 80% | 575 | 46 | 366 | 2200 | None | 5 | 12 |
| 14 | 80% | 575 | 50 | 381 | 2300 | None | 5 | 12 |
| 15 | 90% | 650 | 54 | 396 | 2400 | 600 | 5 | 12 |
| 16 | 90% | 650 | 58 | 411 | 2500 | None | 7 | 14 |
| 17 | 90% | 650 | 62 | 426 | 2600 | None | 7 | 14 |
| 18 | 100% | 725 | 66 | 441 | 2700 | 600 | 7 | 14 |
Details
Ability Type: Passive (remains active for all troops within the Grand Warden’s aura from the beginning to the conclusion of the battle, provided the Grand Warden remains alive)
Equipment Type: Common
Available at: Town Hall 11
The Life Gem is associated with four key statistics: Hitpoints Increase Percentage, Max Hitpoint Increase, Damage Per Second Increase, and Hitpoint Increase.
- Hitpoints Increase Percentage: This determines the percentage increase in hitpoints that troops receive when inside Grand Warden’s aura. It’s a percentage of their actual hitpoints. So, the final hitpoints for troops within the aura equals their actual hitpoints plus the percentage provided by the Life Gem. It starts at a 40% hitpoints increase with a level 1 Life Gem and goes up to a 100% hitpoints increase at the maximum level.
- Max Hitpoint Increase: This sets the maximum limit on the hitpoints increase a troop can receive from the first “Hitpoints Increase Percentage” statistic. It starts at 275 and goes up to 725 at the maximum level of the Life Gem.
- Damage Per Second Increase: This statistic is for Grand Warden only and it decides the increase in damage per second he receives when equipped with the Life Gem. It starts at +10 damage per second and goes up to +66 damage per second at the maximum level of the Life Gem.
- Hitpoints Increase: This statistic is also for Grand Warden only, determining the increase in hitpoints he receives when equipped with the Life Gem. It starts at +150 hitpoints and reaches +441 hitpoints at the maximum level of the Life Gem.
