Hitting an enemy champion with Mark casts a random harmful summoner spell on them, and also casts a random beneficial summoner spell on yourself. Using Dash casts the beneficial summoner spell on yourself again upon arrival. Additionally, your Mark cooldown is reduced equivalent to 100 ability haste.
Harmful summoner spells include Exhaust and Ignite, while beneficial ones consist of Barrier, Clarity, Cleanse, Ghost, and Heal. If Mark is not equipped, the summoner spell in the slot not occupied by Flash is replaced with Mark.
Retired in live Mayhem
This augment was removed from live ARAM Mayhem in Patch 26.20. The page stays available for patch history, old clips, and combo references.
Meta Patch
26.20
Snowball Roulette Trend
All 13 snapshots, 2026-02-06 to 2026-06-09. Dotted lines mark the first snapshot of each patch. Dashed segments span periods with no snapshot.
Recent snapshots
Date
Patch
Rank
Tier
Pick Rate
2026-06-09
26.11
#99
A-
22.15%
2026-06-08
26.11
#97
A-
22.49%
2026-06-05
26.11
#98
A-
22.67%
2026-06-03
26.11
#98
A-
23.15%
2026-06-02
26.11
#95
A-
23.34%
2026-06-01
26.11
#95
A-
23.34%
Snowball Roulette Augment Guide - ARAM: Mayhem
Snowball Roulette was removed from live ARAM Mayhem in Patch 26.20. This page keeps the historical tooltip, rarity, and references available after the augment left the live pool.