Guardian
Shield self and ally on taking damage
Effect
Gold Equivalent
Priced at item unit costsSet by Shield alone
- This rune
- Other keystones
- Flash 971
#8 of 13 keystones. Lowest: First Strike 171G; highest: Empowerment 891G
- Shield465G100%Lv1 133 → Lv15 829
- Gold eq.
- Match average 465
- Flash 971
| Lv1 | Lv5 | Lv10 | Lv15 | |
|---|---|---|---|---|
| Gold eq. | 133 | 322 | 541 | 829 |
| Shield | 40 | 75.7 | 120.4 | 165 |
| Damage Threshold | 70 | 118.6 | 179.3 | 240 |
Effect values split the description range evenly by level
Combat only: 50%
Effects that only work in combat or under a condition are counted as active half the time. The same rule applies to every rune and spell.
You and one ally
Heals and shields that also reach an ally are counted for two people: you and one ally.
One fight per 90s
A 15-minute match is assumed to have 10 fights. Shields and damage blocks that work once per fight are counted as extra health in every fight.
Champion median
Values that depend on the champion, such as health, use the median of all champions at level 1 and level 15.
Ratios use a reference build
Build-dependent ratios such as 10% bonus AD are counted against a reference build (an assumption): 0 / 1 / 2 / 4 finished items at levels 1 / 5 / 10 / 15 (linear in between), each worth the median of the finished items that have that stat (AD 45 / AP 70 / health 350 / armor 40 / magic resist 40). Effects with ratios of two or more types (AD / AP / tank: health, armor, magic resist) count only the highest type (items use their own type), since four finished items can't be four of each type. In the Build Lab's combat power, the ratios use your actual build instead.
Full Calculation
BasisIn-game text (captured 2026-09-23): 1.5s shield of 40-165 on taking enough damage, applied to you and the ally; counted as extra health per fight, 50% for the trigger condition; the 6% bonus HP / 15% AP ratios counted against the reference build; only the higher of the tank-type and AP-type values is added
- 1valued as extra health in every fight; 10 fights in a 15-minute match (one per 90s). 900s match ÷ 55–25s cooldown = 16.36–36 uses, capped at 10 fights → 10. 40–165 × 3.33G health price × 10 ÷ 10 fights × 50% uptime × 2 (you and one ally)= 133–549G
- 2Ratio: reference build bonus health 0–1,400 × 6%= 0–84
- 3Same formula for 0–84= 0–280G
- 4Ratio: reference build AP 0–280 × 15%= 0–42 (not counted: the tank type is higher)
- 5Total 133–549G + 0–280G= 133–829G
- Match average: mean of levels 1–15 = 465G
