Reticle is a hardened assassin. She is very unemotional, cold, and dangerous. She has been granted virtual unlimited authorization to kill. Anyone not allied to Blister's cause is fair game. While she won't kill indiscriminately, she tends to act ferociously on the slightest insult.
However, she does have a softer side if you get to know her well enough. She will not attack dragonets unless expressly ordered to (which has only happened once; see below). She has a crush on Nyx, but thinks Nyx is far too soft. If the order ever came through, she'd try to escape with Nyx as she was one of the only living dragons that meant anything to her.
Going through the decade-long track of training, she's had virtually all nonprofessional emotion squeezed out of her. Once she was released and stationed in the SkyWing kingdom, she went into the "active standby" mode she'd been trained for. She lived a relatively normal life until the order to terminate the dragonets of destiny was sent in. Since then, she's been after them. The rainforest is too heavily guarded for her to attack, so she's staying nearby under deep cover as a SandWing rebel exiled for disobedience.