Skip to content
LazyEloGet the app
Menu
Eureka augment icon

PrismaticPrismatic augment

Eureka

Gain (30% Ability Power) Ability Haste.
Tier
A
Rank
#56
Rarity
Prismatic
Offered in
All picks
Patch
26.21

How Eureka plays

Eureka is A tier over all champions on patch 26.21: #56 of 226 augments and #21 of the 69 prismatic cards. That is the average over every champion; on the right one it is worth more, on the wrong one much less.

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

It does best on Shaco, Vladimir and Veigar. 8 of its 15 best champions are mages.

It gets better later: B tier as a first pick and A tier by the fourth pick, when the game runs long enough for it to pay off.

The card it pairs with best is Echo Cast: if you already have one of the two, the other jumps up your list.

Eureka 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 B#74
Second pickTier A#54
Third pickTier A#40
Fourth pickTier A#43

Best champions for Eureka

The champions Eureka 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.
#ChampionRoleEureka on itChampion tier
1Shaco iconShacoAssassinTier STier B
2Vladimir iconVladimirMageTier STier C
3Veigar iconVeigarMageTier STier B
4Annie iconAnnieMageTier STier B
5Kennen iconKennenMageTier STier D
6Kayle iconKayleMarksmanTier STier S
7Fizz iconFizzAssassinTier STier A
8Ahri iconAhriMageTier ATier A
9Shyvana iconShyvanaFighterTier ATier A
10Syndra iconSyndraMageTier ATier A
11Orianna iconOriannaMageTier ATier B
12Aurora iconAuroraMageTier ATier B
13Teemo iconTeemoMarksmanTier ATier S
14Gragas iconGragasFighterTier ATier B
15Rumble iconRumbleFighterTier ATier B
16Galio iconGalioTankTier ATier A
17Cassiopeia iconCassiopeiaMageTier ATier C
18Maokai iconMaokaiTankTier ATier B
19Mel iconMelMageTier ATier C
20Kai'Sa iconKai'SaMarksmanTier ATier B

Also good on Karma, Seraphine, Ekko, Lillia, Miss Fortune, Vex, Zyra, Karthus, Ziggs, Renata Glasc, LeBlanc, Kassadin, Nami, Ezreal, Lissandra, Nunu & Willump, Elise, Lux, Viktor, Ashe, Zilean, Blitzcrank, Neeko, Sona, Fiddlesticks, Milio, Nidalee, Singed, Heimerdinger, Mordekaiser, Azir, Evelynn, Vel'Koz, Aurelion Sol, Morgana, Sylas, Locke, Brand, Taliyah, Malzahar, Xerath, Volibear, Malphite, Diana, Jax, Nasus, Kog'Maw, Zoe, Twisted Fate, Akali, Zac, Alistar, Xin Zhao, Lulu, Gwen, Bard, Yuumi, Hwei, Rakan, Swain, Janna, Ryze, Amumu, Thresh, Trundle, Udyr, Anivia, Varus, Senna, Cho'Gath, Nautilus, Twitch, Tahm Kench, Soraka, Sejuani, Yunara, Gangplank, Tryndamere, Ivern, Shen, Zeri, Rammus, Taric, Braum and Katarina.

Cards that pair with Eureka

The cards that do best next to it in the same game, best first.
  1. 1Echo CastTier A
  2. 2With HasteTier B
  3. 3Chain ReactionTier D
  4. 4Spell SplitTier B
  5. 5MultishotTier D
  6. 6MinionmancerTier B
  7. 7Terrain'dTier A
  8. 8Wooglet's WitchcapTier A

Items to buy with Eureka

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. Banshee's Veil1. Banshee's Veil
  2. Wooglet's Witchcap2. Wooglet's Witchcap
  3. Void Staff3. Void Staff
  4. Statikk Shiv4. Statikk Shiv
  5. Boots of Swiftness5. Boots of Swiftness
  6. Cosmic Drive6. Cosmic Drive

Questions and answers

What does Eureka do in ARAM Mayhem?

Gain (30% Ability Power) Ability Haste.

Is Eureka good in ARAM Mayhem?

On patch 26.21 Eureka is A tier over all champions (#56). It is at its best on Shaco, Vladimir and Veigar.

Which champions is Eureka best on?

Best first: Shaco, Vladimir, Veigar, Annie, Kennen, Kayle, Fizz and Ahri. The full list with each champion's tier is on this page.

What pairs well with Eureka?

Echo Cast, With Haste and Chain Reaction, 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.