Ettin

From Doom Wiki

Ettins are monsters from Hexen. They are two-headed monsters outfitted with armor and maces, but are essentially the lowest tier of monster and very straightforward to kill, even with 175 Hit points. Ettins are also the most common enemy in the game, and the first encountered. In addition, they spawn randomly (about one per minute?) as long as the player is on a given map. Their melee attacks consist of mace swings; however, these only cause a small amount of damage and are easily dodged by the player. They gib when they take too much damage or get killed by the Quietus, Wraithverge, or Bloodscourge weapons.

Hexen monsters
Afrit | Brown Chaos Serpent | Centaur | Dark Bishop | Death Wyvern | Ettin | Green Chaos Serpent | Heresiarch | Korax | Maulotaur | Menelkir | Reiver | Slaughtaur | Stalker/Stalker Boss | Traductus | Wendigo | Zedek