Apex Packmaster

Beasts, companions, and willing allies of your choice in the emanation become a perfect hunting pack. They gain +15 ft. speed, advantage on melee attack rolls while another affected creature is within 5 ft. of the target, and advantage on STR, DEX, and WIS saving throws. Once per round, when one affected creature hits a hostile creature, another affected creature may use its reaction to move up to its speed and make one attack against the same target.