Sigma is countered by heroes who can bypass or break his barriers quickly. Beam damage, anti-heal, and sustained pressure reduce his effectiveness.
Sigma struggles when pressured by sustained damage that forces him to constantly reposition or drop shields. Anti-heal limits his self-sustain from Kinetic Grasp.
Sigma excels against poke-heavy comps, absorbing projectiles and returning damage. His crowd control makes him effective at locking down immobile targets.
Sigma is a versatile tank who combines strong defensive tools with mid-range pressure. His Hyperspheres provide reliable poke damage, while his Experimental Barrier allows flexible protection for teammates. With Accretion, he can stun and displace enemies, punishing overextensions. Sigma’s strength lies in his ability to balance offense and defense. Kinetic Grasp converts incoming projectiles into shields, rewarding timing and awareness. Smart use of his barrier allows him to control angles, block ultimates, and peel for teammates, making him one of the most flexible tanks in Overwatch. Sigma fits best into poke and hybrid compositions where spacing and ranged pressure are crucial. His Gravitic Flux ultimate is a powerful fight-ender, lifting enemies into the air and leaving them vulnerable to follow-up damage. For players who value a balance of durability, utility, and mechanical skill, Sigma offers a rewarding and impactful tanking experience.