Viego is a powerful champion equipped with lifesteal, speed buffs, untargetability, stun, and % health damage.
Consider picking counters like Evelynn, Pyke, Warwick, Sett, Amumu, or Zed against him.
For skill leveling, follow QWQE until level 4, then prioritize Q, and max W later.
Stats
Q
W
E
R