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Erosion augment icon

SilverSilver augment

Erosion

Damaging enemies shreds 1.5% Armor and Magic Resist for 4s, up to 30% at 20 stacks.
Tier
A
Rank
#60
Rarity
Silver
Offered in
All picks
Patch
26.21

How Erosion plays

Erosion is A tier over all champions on patch 26.21: #60 of 226 augments and #20 of the 67 silver cards. That is the average over every champion; on the right one it is worth more, on the wrong one much less.

It gives health and resistances, so it pays off on champions that already use that. On a champion that doesn't, it is a wasted pick, whatever its tier.

It does best on Aurelion Sol, Singed and Shaco. 5 of its 15 best champions are mages.

It is stronger early: A tier as a first pick and B tier by the fourth pick. Take it when it shows up early.

The card it pairs with best is Don't Change the Channel: if you already have one of the two, the other jumps up your list.

Erosion tier by pick

ARAMKit ranks every card for each of the four picks of a game separately. The rank is its place among the cards offered in that pick.
PickTierRank in that pick
First pickTier A#51
Second pickTier A#43
Third pickTier A#46
Fourth pickTier B#88

Best champions for Erosion

The champions Erosion does best on, best first, with its tier on each and the champion's own Mayhem tier. Tiers only: no win rates for augments, as Riot's policy asks.
#ChampionRoleErosion on itChampion tier
1Aurelion Sol iconAurelion SolMageTier STier B
2Singed iconSingedTankTier STier B
3Shaco iconShacoAssassinTier STier B
4Karthus iconKarthusMageTier STier C
5Malzahar iconMalzaharMageTier STier A
6Brand iconBrandMageTier STier B
7Mordekaiser iconMordekaiserFighterTier ATier C
8Rumble iconRumbleFighterTier ATier B
9Kayle iconKayleMarksmanTier ATier S
10Cassiopeia iconCassiopeiaMageTier ATier C
11Lillia iconLilliaFighterTier ATier S
12Udyr iconUdyrFighterTier ATier B
13Bel'Veth iconBel'VethFighterTier ATier S
14Teemo iconTeemoMarksmanTier ATier S
15Maokai iconMaokaiTankTier ATier B
16Skarner iconSkarnerTankTier ATier C
17Urgot iconUrgotFighterTier ATier C
18Gwen iconGwenFighterTier ATier S
19Amumu iconAmumuTankTier ATier B
20Yunara iconYunaraMarksmanTier ATier B

Also good on Zyra, Heimerdinger, Miss Fortune, Hwei, Naafiri, Mel, Kalista, Illaoi, Katarina, Fiddlesticks, Ornn, Akshan, Shyvana, Anivia, Renekton, Annie, Zeri, Ziggs, Kog'Maw, Briar, Azir, Xayah, Senna, Garen, Morgana, Nasus, Trundle, Kindred, Tristana, Sivir, Twitch, Volibear, Shen, Swain, Sion, Galio, Blitzcrank, Seraphine, Viktor, Ashe, Zac, Gnar, Kennen, Yorick, Rell, Rammus, K'Sante, Varus, Quinn, Dr. Mundo, Diana, Smolder, Kai'Sa, Taliyah, Ahri, Braum, Taric, Xin Zhao, Warwick, Jinx, Vel'Koz, Elise, Pantheon, Malphite, Vi, Lissandra, Hecarim, Darius, Sejuani, Jax, Yone, Nautilus, Alistar, Renata Glasc, Vladimir, Poppy, Orianna, Aurora, Fizz, Graves, Vex, Ambessa, Thresh, Ezreal, Olaf, Corki, Neeko, Nunu & Willump, Viego, Cho'Gath, Lucian, Sett, Master Yi, Xerath, Aphelios, Leona, Sylas, Kayn, Veigar, Bard, Syndra, Aatrox, Wukong, Irelia, Zaahen, Rakan, Twisted Fate, Jarvan IV, Rek'Sai, Lee Sin, Tryndamere, Gragas, Nocturne, Lulu, Caitlyn, Nilah, Karma, Milio, Akali, Yuumi, Nidalee, Zed, Yasuo, Kled, Sona, Ryze, Fiora, Camille, Tahm Kench, Rengar, Kha'Zix, Riven, Ekko, Locke, Nami, Zoe, Draven, Kassadin, Qiyana, Soraka, Janna, Pyke and Ivern.

Cards that pair with Erosion

The cards that do best next to it in the same game, best first.
  1. 1Don't Change the ChannelTier A
  2. 2Terrain'dTier A
  3. 3Infernal ConduitTier A
  4. 4Ice ColdTier C
  5. 5MinionmancerTier B
  6. 6Magic MissileTier C
  7. 7Skilled SniperTier C
  8. 8Searing DawnTier C

Items to buy with Erosion

The items that do best in games with this card, best first, over all champions. Check your champion's build page for its own items.
  1. Morellonomicon1. Morellonomicon
  2. Bloodletter's Curse2. Bloodletter's Curse
  3. Rylai's Crystal Scepter3. Rylai's Crystal Scepter
  4. Liandry's Torment4. Liandry's Torment
  5. Blackfire Torch5. Blackfire Torch
  6. Malignance6. Malignance

Questions and answers

What does Erosion do in ARAM Mayhem?

Damaging enemies shreds 1.5% Armor and Magic Resist for 4s, up to 30% at 20 stacks.

Is Erosion good in ARAM Mayhem?

On patch 26.21 Erosion is A tier over all champions (#60). It is at its best on Aurelion Sol, Singed and Shaco.

Which champions is Erosion best on?

Best first: Aurelion Sol, Singed, Shaco, Karthus, Malzahar, Brand, Mordekaiser and Rumble. The full list with each champion's tier is on this page.

What pairs well with Erosion?

Don't Change the Channel, Terrain'd and Infernal Conduit, best first.

Pick your cards with the tiers next to you

LazyElo is a free Windows app that sits next to the League client. In ARAM Mayhem it shows the strongest champion on your bench, and in game you type the three cards you're offered to see their tier for your champion and what each one does.

Related

Source: ARAMKit, used with permission. Patch 26.21, 23,177,263 ARAM Mayhem games, data of October 28, 2026. Riot keeps Mayhem games out of its public match API, so these aggregates come from ARAMKit. Card tiers are shown without win rates, as Riot's developer policy asks.