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Stackosaurus Rex augment icon

SilverSilver augment

Stackosaurus Rex

When you gain permanent Stacks of an Ability, gain 100% more!
Tier
S
Rank
#14
Rarity
Silver
Offered in
Pick 1, Pick 2
Patch
26.21

How Stackosaurus Rex plays

Stackosaurus Rex is S tier over all champions on patch 26.21: #14 of 226 augments and #2 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 does best on Senna, Aurelion Sol and Smolder.

It is stronger early: S tier as a first pick and A tier by the second 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.

Stackosaurus Rex 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 S#6
Second pickTier A#27
Third pickNot offered–
Fourth pickNot offered–

Best champions for Stackosaurus Rex

The champions Stackosaurus Rex 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.
#ChampionRoleStackosaurus Rex on itChampion tier
1Senna iconSennaSupportTier ATier C
2Aurelion Sol iconAurelion SolMageTier ATier B
3Smolder iconSmolderMarksmanTier ATier B
4Veigar iconVeigarMageTier BTier B
5Nasus iconNasusFighterTier BTier B
6Kindred iconKindredMarksmanTier BTier C
7Cho'Gath iconCho'GathTankTier BTier C
8Swain iconSwainMageTier CTier B
9Shyvana iconShyvanaFighterTier CTier A
10Bel'Veth iconBel'VethFighterTier CTier S
11Sion iconSionTankTier CTier B

Cards that pair with Stackosaurus Rex

The cards that do best next to it in the same game, best first.
  1. 1Don't Change the ChannelTier A
  2. 2BONK!Tier A
  3. 3Upgrade Sword of Blossoming DawnTier B
  4. 4Big BrainTier A
  5. 5Ice ColdTier C
  6. 6Jeweled GauntletTier B
  7. 7Third Times the HarmTier C
  8. 8Bread and CheeseTier C

Items to buy with Stackosaurus Rex

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. Echoes of Helia1. Echoes of Helia
  2. Sword of Blossoming Dawn2. Sword of Blossoming Dawn
  3. Black Cleaver3. Black Cleaver
  4. Ardent Censer4. Ardent Censer
  5. Runaan's Hurricane5. Runaan's Hurricane
  6. Bloodletter's Curse6. Bloodletter's Curse

Questions and answers

What does Stackosaurus Rex do in ARAM Mayhem?

When you gain permanent Stacks of an Ability, gain 100% more!

Is Stackosaurus Rex good in ARAM Mayhem?

On patch 26.21 Stackosaurus Rex is S tier over all champions (#14). It is at its best on Senna, Aurelion Sol and Smolder.

Which champions is Stackosaurus Rex best on?

Best first: Senna, Aurelion Sol, Smolder, Veigar, Nasus, Kindred, Cho'Gath and Swain. The full list with each champion's tier is on this page.

What pairs well with Stackosaurus Rex?

Don't Change the Channel, BONK! and Upgrade Sword of Blossoming Dawn, 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.