Primus Con Save: 1D20+2 = [10]+2 = 12
Primus calls out, but quickly attunes his body to the cold, mitigating much of the damage he took.
(Reaction: Adaptive Shield (3 psi). When you take acid, cold, fire, lightning, or thunder damage, you can use your reaction to gain resistance to damage of that type—including the triggering damage— until the end of your next turn.
So Primus is temporarily resistant to Cold damage. 32 damage taken.)
Primus can't see the monster, but he knows the general direction. He doesn't usually like to use up his powers this quickly, but he figures either he takes it out, or it kills them all.
He screams and shoves an overwhelming psychic force at the direction of the monster, crashing in to any creature in front of him and around it!
(Action: Psychic Blast (6 psi). As an action, you unleash devastating psychic energy in a 60-foot cone. Each creature in that area must make an Intelligence saving throw, taking 8d8 psychic damage on a failed save, or half as much damage on a successful one.
Tis my most powerful ability. DC is 16 Int Save for half damage. Also, I heal 6 hp from using a psionic ability as a Bonus Action. Also, I'm going to angle it up towards the dragon, so hopefully it doesn't hit any of my friends!
Psychic Blast damage roll: 8D8 = [2, 6, 1, 7, 8, 1, 6, 3] = 34
)
Then Primus runs to the side, trying to find shelter from the next Icy Blast, if there is one. Or at least get away from his team mates so they don't all fall at once.
{AC: 16
HP: 27/59
PP: 33/44
Currently resistant to Cold)}