Garret Hawke is the main character of Dragon Age 2: Rise the Power and considered to be the most powerful and important character in Dragon Age Universe. He's the reason on why the world is in war and because of other shit. He survived the destruction of his home in the hand of the darkspawn, a monstrous horde of orc like creatures from the underworld and from there became the feared and respected Champion of Kirkwall.
Let's see his feats:
-Killed hundreds of dark-spawn.
-Killed thousands of people from the four races (elfs, dwarfs and so on).
-Killed a big number of dragons including a High Dragon, the most feared of all beasts.
-Killed a uncounted number of demons and beasts considered to be extremely dangerous to fight.
-Defeated Xebenckeck and Hybris, two lords of the demons and two of the four most powerful.
-Defeated two varterrals. Monster said to be impossible to kill.
-Killed a Tevinter Magister Darkspawn. A creature so powerful that it's presence only can drive entire city's to war on his weakest.
-Killed Gray Wardens, said to be the most skilled fighters in Thedas.
-Killed the Arishok, the most skilled know Qunari able to kill thousands of soldiers alone.
-Defeated a Knight Commander at Super Sayajin 1 (lol), considered to be one of the skilled fighters ever.
-Killed hundreds of mages and templars.
-Killed Malvernis, an extremely powerful entity feared by the Gray Wardens of old able to summon hundreds of undeads and turn itself into a Dragon.