Stormsurge — Effect, Stats and Cost
Cost 2,800G
Effects and values: transcribed from the game, with official patch note changes applied through patch 7.3a (updated )
Pick counts and win rates: in-game popular builds, 2026-08-26 to 2026-10-07; 13 of 142 champions from before patch 7.3a
Stats
- +90 Ability Power
- +15 Magic Penetration
- +6% Movement Speed
Item Effects
- Stormraider
- When damaging a champion, dealing damage equal to 25% of their max HP within 2.5 second(s) applies Squall to them and grants you 25% bonus Movement Speed for 2.5s. (25s cooldown)
- Squall
- After 2 second(s), strike the target, dealing magic damage equal to 125 plus 10% AP. If the target is killed before the strike, it detonates immediately in a large area and grants 25 gold.
Stormsurge patch history
Figures are as written in the official patch notes; the commentary is ours.
Stormsurge
Patch 7.2dBase Stats
- Cost2900g → 2800g
Our take
The problem was the price, not the item. A hundred gold less makes Stormsurge easier to slot alongside other purchases.
Stormsurge
Patch 7.2Base Stats
- Cost: 2900g
- Recipe: Hextech Alternator (1100g) + Aether Wisp (950g) + 850g
- AP: +90
- MR Penetration: +15
- Movement Speed: +6%
- Flat MR penetration of 15 is proportionally large against early and mid-game opponents who have not built magic resistance. The 6% movement speed feeds directly into how fast you move between lanes, which fits taking a kill and immediately rotating. With percentage penetration removed from tier 3 mage items, a first item that supplies penetration is worth more than it was. For burst mages, this is the piece that lets them start making plays early.
Stormsurge
Patch 7.2- This item's effect has been adjusted to match the ranked version.
- Stormsurge also loses its mode-specific tuning and now matches ranked. Moving between modes no longer means re-checking how the item behaves. Burst mages can bring their ranked build order across as it is.
Stormsurge
Patch 7.2- Dealing damage equal to 25% of a champion's max HP within 2.5s applies Squall to that target and grants you 25% movement speed for 2.5s. (25s cooldown)
Squall
- After 2s, deal 125 + 10% AP magic damage. If the target dies before Squall triggers, it deals the same damage to nearby enemies instead and grants 25 gold.
- Removing 25% of a health bar within 2.5s is a condition a burst mage meets naturally. The 25% movement speed afterwards means that even without the kill you can choose between leaving and rotating onto the next target. And when the target does die, the damage spreads to everyone nearby, so one pick in a teamfight sets up the next. Being useful for both the chase and the exit is what makes it fit mages who roam through the early and mid game.
Champions who build Stormsurge
Read from the "Popular" tab on the in-game loadout screen. Across 314 builds covering 142 champions, 13 build this item. Only 1 to 4 builds were captured per champion, so a champion missing here may still build it.
| Champion | Picks | Win rate |
|---|---|---|
| Swain | 17,119 | 54.84% |
| Ahri | 12,050 | 55.18% |
| Akali | 10,831 | 52.14% |
| Aurora | 9,387 | 54.04% |
| Vex | 6,812 | 53.91% |
| Syndra | 5,891 | 54.06% |
| Orianna | 5,656 | 55.37% |
| Veigar | 4,447 | 53.60% |
| Fiddlesticks | 2,988 | 50.29% |
| Vladimir | 2,216 | 54.52% |
| Kennen | 1,452 | 56.27% |
| Gragas | 964 | 53.70% |
| Taliyah | 748 | 51.02% |
Where a champion runs the item in more than one build, the figures come from the build with the most picks. Nothing is averaged.
Items built alongside it
How often each item appeared in the same build. This is co-occurrence, not synergy — items favoured by popular champions rise to the top.
About the data on this page
Stats and item effects are transcribed from the game, with changes from later patches taken from the official patch notes. Pick counts and win rates are the values shown on the in-game loadout screen’s "Popular" tab between 2026-08-26 and 2026-10-07.