tf2- Parade

The genius of this drawing? Work your way from right to left and it's a lineup of the classes, in order of who's hard-counter to who.

Scouts have the speed and damage to close in on and either finish Medics or split them from their patient.
Engineers' Sentries can shoot Scouts right out of the air.
Demomen can bounce pills and stick stickies right on a troublesome sentry.
Heavies can tank explosives and riddle Scottish cyclopes with bullets since he has the game's only heavy automatic weapon.
Snipers can easily headshot Heavies thanks to the latter's lumbering slowness.
Spies can catch Snipers unawares with a backstab while they're sniping.
Pyros can easily mark disguised Spies by setting them on fire.
Soldiers can blow up Pyros with a single rocket, provided they can aim it such that the Pyro can't airblast.