Laaga was originally Marii's guardian animal on the continent of Derkarr. He resides in the Forest of Marii, guarding the entrance to Eileen's house. After Johannes brought her to the Forest of Marii, and the forest began to return to life, Laaga considered her to be his new master.
As he is an event-only enemy, Laaga's full stats are unknown.
Defeating Laaga will grant +110 Vitality as well.