<Eldest Ipsumodon>
Level 105 ^
Kill 4 armored ipsumodon to get the red text 'You hear a great bellow rumble through the air. You have angered Gra'ta!' and make him attackable.
Watch out for the red text 'Gra'ta is preparing a massive strike with his clubbed tail. You should interrupt him or get out of the way!' during the fight.