Call Annareag

You utter words in draconic, summoning Annareag, a young amethyst dragon from the plane of Asylum. He appears in an unoccupied space you can see within range, and the dragon disappears when it drops to 0 hit points or when the spell ends.

Roll initiative for the dragon, which has its own turns. Annareag still has control over his actions, and you must make a deal with him if you want to give him orders. Once a deal is struck and once in each of your turns thereafter, you can issue a verbal command to it (requiring no action on your part), telling it what it must do on its next turn. If you issue no command, it spends its turn attacking any creature within reach that has attacked it.

If you do not make a deal, Annareag will spend his turns pursuing and attacking the nearest creature to the best of its ability. If you stop concentrating, Annareag doesn't disappear for 1d6 rounds if it still has hit points.