Hero 2 hits twice per second and deals 50 damage. His DPS is 100.
Both Heroes purchase an item that grants 100 bonus damage.
Hero 1 now hits once per second and deals 200 damage. His DPS is 200.
Hero 2 now hits twice per second and deals 150 damage. His DPS is 300.
2) Mages, Rogues, Rangers, and the like focus on dealing a lot of damage, as opposed to tanks who take damage, or healers, who heal damage. Therefore, they are referred to as DPS classes
Gavin: OMFG YOU KNOW MY NAME!!!1!1one
Sabrina: IKR! Luis told me! :P
Gavin:Unrelated: Do you swear?
Sabrina:wtfff? idk vat you say. wtfff? idk vat you say.
Gavin: OMFG YOU HAVE DPS!!!!