My medium-sized character has a flying speed. I would like to attack a Halfling Beast Master with my shortsword. My reach is 5 feet, because I’m not a bugbear or have other crazy features that would allow for longer melee range. The Halfling uses his Animal Companion, a wolf, as a mount.
Can I fly directly above the halfling, allowing me to be in melee range with him, but not with his wolf friend? I don’t want to get hit by the Coordinated Attack. Or could the wolf just jump (either as an action on its turn or as a reaction), in order to bite me?