Gragas & Viego Synergy
Gragas Top and Viego Jungle win 50.5% of 1,367 Low Elo games together, +0.9 points vs expected, 2-patch window 26.19-26.20.
Researched on LoL patch 26.20. Tips are written to hold at any rank; stats come from Low Elo ranked games up to patch 26.20.
Why this duo works
Gragas's Body Slam(E) gives Viego the hard-control opening he needs to land Spectral Maw(W), while Explosive Cask(R) can isolate or reposition a target. Viego mains identify reliable hard CC and engage partners as strong setup for his stun and follow-up, which fits the duo's +3.5 pp High-Elo synergy.
Measured in High Elo: this duo wins 1.4pp more often than expected over 1,000 games.
Playing the duo
Gragas's E stuns on collision and R displaces enemies, creating a setup window for Viego's W and follow-up burst; Viego mains say hard CC partners make his stun and R easier to land.
How to play as Gragas
Start with E to lock a target or use R to separate one from the team, then let Viego follow the opening instead of spending both tools after he has already committed.
How to play as Viego
Wait just outside vision until Gragas starts with E or R, then follow the stunned or displaced target with W and burst to secure the first takedown.
Sources
These notes come from r/ViegoMains, checked against the champions' abilities.