As a Bonus Action, you can command Garth to take an action other than Dodge. If you are incapacitated, Garth can act independently and protect you. Garth's attacks and abilities improve as Tex gains Ranger levels.

You can use the magical force within your celestial heritage to reveal your true nature. As a Bonus Action, you can transform for 1 minute, gaining a flying speed equal to your walking speed and one additional Revelation option. You can use this feature once per Long Rest. Tex's Radiant Soul option causes him to emit bright light and deal extra radiant damage once on each of his turns.

Tex marks a foe with divine tracking magic, gaining advantages against that target while Garth harasses it from above.

Tex directs Garth to rake an enemy's face with spectral talons or distract it at a crucial moment.

Tex briefly manifests luminous wings and a halo of drifting stardust, then unleashes a burst of radiant force.

You always have the Hunter's Mark spell prepared. You can cast it without expending a spell slot a number of times equal to your Wisdom modifier, minimum once, and regain all expended uses when you finish a Long Rest. You also have advantage on Wisdom (Perception) checks to find a creature marked by the spell.

You gain proficiency with the weapon mastery properties of three Simple or Martial weapons of your choice. Tex uses the mastery properties of the longbow, shortsword, and spear.

You can cast prepared Ranger spells using Wisdom as your spellcasting ability. You have two level 1 spell slots and can prepare three Ranger spells, in addition to always having Hunter's Mark prepared.

You gain the Defense Fighting Style, granting a +1 bonus to Armor Class while wearing armor.

You gain Expertise in Animal Handling. You also learn two additional languages, Galactic Trade Cant and Celestial.

You gain the Beast Master subclass and form a supernatural bond with a primal companion. Tex's companion is Garth, a Beast of the Sky. Garth acts during Tex's turn and can attack, Dash, Disengage, Dodge, Help, Hide, or Search when commanded. The companion's attacks use Tex's proficiency bonus and deal force, piercing, or radiant damage as appropriate to its form.

You have military rank or experience recognized by soldiers and organizations connected to armed forces. You can invoke that experience to gain access to military encampments, request simple aid from soldiers, and use your service record to influence people who respect disciplined service.