Create a swarm of 7 fiery bluebirds. You can order them to target an enemy or multiple enemies, each one dealing 1d8+3 fire damage upon contact. If the same enemy is hit by multiple bluebirds, they take 2 less damage for each bluebird that hits them until they take zero damage. Enemies hit by this attack must succeed a constitution saving throw or be burned for 1d4+1 fire damage for 2 rounds, starting at the start of their next turn and ending at the end of the turn after that.
Each level above the 5th you can summon an additional bird.
At the 8th level and beyond, the birds can occupy a space of 4 squares instead of 1 (being able to hit all enemies within those 4 squares), and deal 2d8+6 fire damage upon contact. The burn effect also deals 2d4+3 fire damage. If all birds are aimed at the same target they turn into a swirling cyclone of azure flames via the words "blue inferno." This cyclone takes up 4 square area.