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Marathon Thief Runner Shell Core Abilities

Written by:  U4N
Published: Feb 26, 2026
25

Thief is a specialized Runner Shell designed for high mobility and rapid loot acquisition. Often described as the "loot goblin" class, it excels at identifying valuable items through walls and escaping combat rather than engaging in direct confrontation.

Marathon Thief Runner Shell

Marathon Thief Runner Shell

  • Archetype: Covert acquisitions
  • With enhanced visors and piloted butterfly drone, Thief shells can locate and acquire loot, then use their grapple to push an advantage or make an escape.

Core Abilities

According to development insights from Bungie, the Thief's kit is built around opportunistic play and speed.

  • Prime Ability: Pickpocket Drone: A piloted, butterfly-like mechanical drone equipped with a whip. It can strike both AI enemies and other players to knock loot out of their inventories, which it then automatically collects.
  • Tactical Ability: Grapple: A forearm-mounted device that fires a dart. Mid-flight, the dart unfolds into a propeller, allowing the user to swing to safety or traverse vertically. Unlike many grapples, it can latch onto "thin air" via a hovering anchor point.
  • Trait 1: X-Ray Visor: An enhanced visor that allows players to see loot containers and enemies through walls. Containers and enemies may be color-coded based on the rarity of the loot they hold.
  • Trait 2: Inventory Scaling: A passive trait where the Thief's base stats and grapple recharge rate improve as their backpack becomes more filled with loot.
Marathon Thief Runner Shell

For players who want to focus more on movement and strategy and less on repetitive farming, some choose to buy Marathon Credits online through platforms like U4N to save time and support their preferred playstyle in a steady, practical way.

Gameplay and Customization

  • Archetype: Specialized in "covert acquisitions," the Thief is ideal for solo players or those focused on maximizing extraction value.
  • Base Stats: the shell features a base Loot Speed of 25, an Agility of 20, and a Movement Heat Capacity of 15.
  • Shell-Specific Cores: Players can further customize the Thief with unique cores, such as one that provides a second Grapple Device charge or another that allows the Pickpocket Drone to automatically ping nearby enemies while idle.

Runner Shell Comparison Table

ShellArchetypePrime AbilityTactical AbilityPrimary Focus
ThiefCovert AcquisitionPickpocket Drone (Steals loot)Grapple Device (Air-anchor mobility)Economy & Loot Efficiency
DestroyerCombat SpecialistSearch & Destroy (Homing missiles)Riot Barricade (Frontal shield)Tanking & Frontline Offense
AssassinShadow AgentSmoke Screen (Sightline block)Active Camo (Invisibility)Stealth & Ambush
ReconIntel SpecialistEcho Pulse (Wall-hack scan)Tracker Drone (Hunts/stuns targets)Information & Tracking
VandalCombat AnarchistAmplify (Speed & handling boost)Disruptor (Knockback projectile)High Mobility & Aggression
TriageField MedicCapacitive Gauntlets (Ranged revive)Med-Drone (Heals shields/health)Squad Sustain & Support
RookScavengerNone (Passive "Blend In")NoneZero-Risk Solo Scavenging
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About the Author: U4N

U4N is a leading online marketplace offering secure, fast transactions for in-game items, currencies, accounts and boosting services. Covering a wide range of popular games, U4N provides players with reliable services, including fast delivery and verified sellers, ensuring a smooth and safe gaming experience.

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