From Quake Wiki
"Floats like a butterfly, stings like a bee. Ugly as hell. They're not real tough, but like to bushwhack you."
Scrags (also known as Wizards) are the only flying monster in standard Quake. Their slime projectiles are easy to dodge, but you'll need lots of room to move and a sharp eye for other Scrags. At long range, use the Shotgun, the Nailgun the Super Nailgun, or the Rocket Launcher. At close range, use a Double-Barrelled Shotgun. At medium range, if you have good aim and are far enough away not to be hurt by the explosion, you can lob a Grenade at a Scrag for a one-shot kill.
Scrags possess some cunning beyond the lofty standard set by the other monsters in Quake (*cough*). They are constantly moving side to side (except when attacking), and so manage to dodge many incoming slow-moving projectiles. Also, if you duck behind cover while they are attacking, they may throw an extra shot or two at your last seen location, so you might want to be careful before you pop back out again.
"Player was scragged by a Scrag"
|Monsters from Quake|
|Chthon | Death Knight | Enforcer | Fiend | Grunt | Knight | Ogre | Rotfish | Rottweiler | Scrag | Shambler | Shub-Niggurath | Spawn | Vore | Zombie|