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Patch 18.4notes 2026-10-06· data synced 2026-10-19

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Gromp
Ability

Belchy Bubble

Adaptor Ability Power : Belch a noxious bubble at the current target that explodes on the first enemy hit, dealing {MagicDamageCalc1} Ability Power magic damage. Enemies within a 1 hex radius of the explosion take {MagicDamageCalc2} Ability Power magic damage over {PoisonDurationAP} seconds. Adaptor Attack Damage : Heavily slows the target. Purple Buff: Every {TraitTimer} seconds, Gromp gains {TraitTimedAP} Ability PowerAbility Power.

Values in braces are scaling variables CommunityDragon does not resolve on this patch; the in-game tooltip has the numbers.

Base stats

By star level

Stat★★★★★★
HealthHealth5509901782
Attack DamageAttack damage304568
DPS (auto-attacks)AD × attack speed, before items, crits and armour213147
Attack SpeedAttack speed0.70.70.7
ArmorArmor303030
Magic ResistMagic resist303030
Attack RangeRange444
ManaManastart / to cast0 / 450 / 450 / 45
Critical Strike ChanceCrit chance25%25%25%

Health scales ×1.8 and attack damage ×1.5 per star; armour, magic resist, range, mana and attack speed do not. Ability damage also grows with stars, but Riot does not ship those numbers.

Synergies

Traits

  • 3Use the Alpha Mark to grant a Riftbeast their unique Buff
  • 5Every {OverrunCombats} combats, your next shop is overrun with Riftbeasts.
  • 7On combat start and every 5 seconds Riftbeasts grow gaining {CapstoneAD}% {CapstoneAP}% {CapstoneAspd}% +{CapstoneArmor} +{CapstoneMR} +{CapstoneHealth} +{CapstoneManaRegen}
  • 10+2 maximum team size
CinderlingPebblesMurkwolfScuttlecrabKrugMama BeakBramblebackSentinelElder Dragon
  • 2{ADAPGain}% OR
  • 3{ADAPGain}% OR
  • 4{ADAPGain}% OR
AkaliKog'MawMaster YiNidalee
Items

Common builds

TFT Lab does not track item win rates and does not scrape the sites that do. For the current best-in-slot on Gromp, check a stats site, then read the Items guide for how to decide when the BIS is not on the table.