Notes

  • This rune gives VladimirSquare Vladimir an additional 11.2 − ∞ (based on Minutes) health thanks to Crimson Pact Crimson Pact.
  • This rune gives a level 18 JhinSquare Jhin without any Critical strike icon critical chances an additional 7 − ∞ (based on Minutes) AD thanks to Whisper Whisper. It's doubled at 100% Critical strike icon critical chances up to 14 − ∞ (based on Minutes) AD
  • With Rabadon's Deathcap item Rabadon's Deathcap, this runes gives an additional 2.8 − ∞ (based on Minutes) AP
  • This rune will give a JaxSquare Jax either 2.5 − ∞ (based on Minutes) bonus magic resistance or 4 − ∞ (based on Minutes) bonus armor when he casts his Grandmaster's Might Grandmaster's Might , whether he's going for AD or AP.
  • The granted total bonuses at each minute throughout the game are calculated as follows:
$ \pagecolor{Black}\color{White}m \in \mathbb{R}_{\ge 0} $ is the number of elapsed minutes throughout the game.
$ \pagecolor{Black}\color{White}k_{AP} = 8.0 $ is the AP multiplier.
$ \pagecolor{Black}\color{White}k_{AD} = 4.8 $ is the AD multiplier.
$ \pagecolor{Black}\color{White}S\left(m\right) = \sum_{s=0}^{\left\lfloor \frac{m}{10} \right\rfloor}{s} $ gives the stacking term.
$ \pagecolor{Black}\color{White}B\left(k,m\right) = k \times S\left(m\right) $ gives the bonus term.
Bonus AP: $ \pagecolor{Black}\color{White}B\left(k_{AP},m\right) = k_{AP} \times S\left(m\right) $.
Bonus AD: $ \pagecolor{Black}\color{White}B\left(k_{AD},m\right) = k_{AD} \times S\left(m\right) $.
Example for bonus AP ($ \pagecolor{Black}\color{White}k_{AP} = 8.0 $) at 32.5 minutes ($ \pagecolor{Black}\color{White}m = 32.5 $):
$ \pagecolor{Black}\color{White}B\left(k_{AP},m\right) = B\left(8.0,32.5\right) = 8.0 \times S\left(32.5\right) = 8.0 \times \sum_{s=0}^{\left\lfloor \frac{32.5}{10} \right\rfloor}{s} $
$ \pagecolor{Black}\color{White}= 8.0 \times \sum_{s=0}^{3}{s} = 8.0 \times \left(0+1+2+3\right) = 8.0 \times 6 = 48.0 $.
Example for bonus AD ($ \pagecolor{Black}\color{White}k_{AD} = 4.8 $) at 21.5 minutes ($ \pagecolor{Black}\color{White}m = 21.5 $):
$ \pagecolor{Black}\color{White}B\left(k_{AD},m\right) = B\left(4.8,21.5\right) = 4.8 \times S\left(21.5\right) = 4.8 \times \sum_{s=0}^{\left\lfloor \frac{21.5}{10} \right\rfloor}{s} $
$ \pagecolor{Black}\color{White}= 4.8 \times \sum_{s=0}^{2}{s} = 4.8 \times \left(0+1+2\right) = 4.8 \times 3 = 14.4 $.
  • non-Iterative formula:
m = ⌊min / 10⌋
stacks = (m^2)/2 + m/2
AD = 4.8 * stacks or 4.8 * ((m^2)/2 + m/2)
AP = 8 * stacks or 8 * ((m^2)/2 + m/2)
Python 3 function which computes $ \pagecolor{Black}\color{White}B\left(k,m\right) $:
def gathering_storm_bonus(k, m): return k * sum(range(m // 10 + 1))
Gathering storm table:
Gathering storm bonus AP and bonus AD over the elapsing minutes of a game
Elapsed minutes Total bonus AP Total bonus AD
000.00.0
108.04.8
2024.014.4
3048.028.8
4080.048.0
50120.072.0
60168.0100.8
70224.0134.4
80288.0172.8
90360.0216.0


Gathering Storm Mark

Patch History

V7.22 Added
  • Sorcery icon Sorcery Slot 3 rune.
    • Passive: Every 10 minutes, gain (1 per 10 Minutes) stacks of Gathering Storm. Each stack grants 8 ability power or 4.8 attack damage (Adaptive).
    • This stacks with no upper limit, for a total of 8 − ∞ (based on Minutes) AP or 5 − ∞ (based on Minutes) AD at 10 − ∞ (based on Stacks) minutes.
    • Adaptive: Grants bonuses based on which stat you already have the most bonuses for. Defaults to the first listed.

References