Bastion
Put simply, Sombra can pretty quickly ruin Bastion’s day for similar reasons to everybody else here. Sombra’s hack instantly pulls Bastion out of his turret form, and to top it off, makes him unable to self-repair. This puts him in a really tough spot, as his subsequent options are to fight in walker mode, or retreat and try again when the hack is over.
Though, chances are Sombra won’t let him get off that easy. Bastion’s walker-mode gun can be very effective, so some well-placed headshots could still easily end Sombra, but the odds are definitely tipped in her favor.
Several Ultimate Abilities
Sombra’s ultimate ability EMP is designed around ruining the best-laid plans of the other team. Not only does it knock out abilities for those in her line-of-sight for a period of time, but it can also completely shut down enemy ultimates.
The biggest ultimates this could effect are that of Lucio, Zarya, and Zenyatta. Zarya’s Graviton Surge, Lucio’s Sound Barrier, and Zenyatta’s Transcendence can all be canceled (even after they activate) with one press of a button from the hacker. This is sure to mix up the kind of matches we currently see that come down to an entire team ulting at the same time to wipe the opposing team.
