Astral Wolf

Strong Infection. Each round the wolf heals 1d8+2.

Infectious. On a target being hit they cannot heal that HP, The lost HP is put into a pool and every round that passes the The unhealable HP is reduced by 1d4*player level

Save DC. 14

Bite and Claw. Melee Weapon Attack: +4 to hit, reach 5 ft., 1 target. Hit:  (1d4 + 1d6) Piercing damage. 

Infection Mortar. Ranged Weapon Attack: Dex Save, range 5/30 ft., 5ft square target. Hit:  (1d8 + 1) Piercing damage half on a success. The wolf shoots meteorite into the sky the float for a second then launch down onto the party.

Scratch: +3 to hit reach 5ft 1 target (1d6+1) slashing.

Cling On. On reaching 0 HP the gains one turn before death.