Rat King

Deadlock hero Rat King: win rate, tier, counters, synergies, builds and every buff and nerf received. Current win rate 56.4% across all ranks, tier S in our live tier list.

Strong against

• Mirage — 62.4% win rate
• The Doorman — 61.8% win rate
• Pocket — 61.7% win rate
• Mina — 61.7% win rate
• Solomon — 61.5% win rate

Struggles against

• Victor — 50.5% win rate
• Paige — 50.7% win rate
• Graves — 50.7% win rate
• Seven — 51.5% win rate
• Haze — 52.1% win rate

Best teammates

• Victor — 63.7% win rate
• Graves — 63.6% win rate
• Paige — 61.3% win rate
• Kelvin — 61.2% win rate
• Seven — 60.4% win rate

Our articles about Rat King

• Halfway through the six heroes: Solomon has the worst start on record, Baba went from 44% to 56%
• Rat King one week in: 62% before the nerf, 56% after, still on the podium
• Rat King: 59% win rate on his first night, a near-record start
• Deadlock’s six new heroes: release dates, times, and how to get notified

Recent changes

• Base bullet damage reduced by 5% (nerf, Halloween 2026 + Gameplay Update)
• Bullet damage growth reduced by 20% (nerf, Halloween 2026 + Gameplay Update)
• Scrap Grenade - Damage reduced from 70 to 60 (nerf, Halloween 2026 + Gameplay Update)
• Scrap Grenade - T2 damage reduced from +70 to +60 (nerf, Halloween 2026 + Gameplay Update)
• Scrap Grenade - T3 damage reduced from 300 to 275 (nerf, Halloween 2026 + Gameplay Update)
• Scrap Grenade - Fuse timers increased by 0.1s (first bounce from 0.8s to 0.9s, later bounces from 0.7s to 0.8s, T3 final explosion from 1.5s to 1.6s) (nerf, Halloween 2026 + Gameplay Update)
• Scrap Grenade - Meleeing the grenade now gives it at least 0.4s before it explodes (if less than 0.4s was left on its fuse, the fuse is extended to 0.4s) (change, Halloween 2026 + Gameplay Update)
• Rule, Ratannia! - Knockup duration reduced by 50% (nerf, Halloween 2026 + Gameplay Update)
• Rule, Ratannia! - Cooldown increased from 160s to 180s (nerf, Halloween 2026 + Gameplay Update)
• Rule, Ratannia! - Now goes on cooldown when stunned/slept before placing it. In that case, the flag is placed in that position but without any of the initial impact effects (damage/knockup) (change, Halloween 2026 + Gameplay Update)
• Street Brawl: Scrap Grenade - Radius reduced from 8m to 6m (nerf, Halloween 2026 + Gameplay Update)
• Street Brawl: Scrap Grenade - Large explosion radius reduced from 14m to 10m (nerf, Halloween 2026 + Gameplay Update)
• Street Brawl: Rule, Ratannia! - Radius reduced from 20m to 16m (nerf, Halloween 2026 + Gameplay Update)
• Street Brawl: Rule, Ratannia! - T2 Radius reduced from +8m to +6m (nerf, Halloween 2026 + Gameplay Update)
• Street Brawl: Rule, Ratannia! - Duration reduced from 12s to 9s (nerf, Halloween 2026 + Gameplay Update)
• Scrap Grenade - Fixed some bugs with bouncing targeting (bugfix, Minor Update - 10-05-2026)
• Scrap Grenade - Damage increased from 65 to 70 (buff, Minor Update - 10-05-2026)
• Scrap Grenade - T2 Damage increased from 65 to 70 (buff, Minor Update - 10-05-2026)
• Rat Swarm - Base Cooldown reduced from 28s to 24s (buff, Minor Update - 10-05-2026)
• Rule, Ratannia! - Cooldown increased from 130 to 160 (nerf, Minor Update - 10-05-2026)
• Rule, Ratannia! - Damage Reduction reduced from 20% to 15% (nerf, Minor Update - 10-05-2026)
• Rule, Ratannia! - Radius reduced from 24m to 20m (nerf, Minor Update - 10-05-2026)
• Rule, Ratannia! - Charge Duration reduced from 12s to 10s (nerf, Minor Update - 10-05-2026)
• Rule, Ratannia! - Bonus Move speed no longer scales with Spirit (nerf, Minor Update - 10-05-2026)
• Rule, Ratannia! - Now falls faster while charging (change, Minor Update - 10-05-2026)
• Rule, Ratannia! - T1 +1m/s Move Speed to +2m/s Move Speed (buff, Minor Update - 10-05-2026)
• Rule, Ratannia! - T1 No longer gives -20s cooldown (Total cooldown from 110s to 160s) (nerf, Minor Update - 10-05-2026)
• Rule, Ratannia! - T2 No longer grants +8s Charge Duration (Total charge duration from 20s to 10s) (nerf, Minor Update - 10-05-2026)
• Rule, Ratannia! - T2 Flag Duration reduced from +8s to +5s (nerf, Minor Update - 10-05-2026)
• Rule, Ratannia! - T3 Damage Reduction reduced from 15% to 10% (Total Damage Reduction from 35% to 25%) (nerf, Minor Update - 10-05-2026)
• Scrap Grenade: bounces now look for targets within 1,200 units instead of 2,000 and favor heroes less (weight 5 to 1.5) (not in the patch notes) (change, Minor Update - 10-05-2026)
• Scrap Grenade: new distance check (2,000 units) when picking a target for its bounces (change, Silent Update - 10-04-2026 (build 6746))
• New hero: Rat King is now playable (Scrap Grenade, Swarm of Rats, Royal Pestments, Banner of Rattania) (change, Listen up, Crumbums! Your King is here.)