Axiom's Insignia

Produced by a special needle, this magic tattoo coats the user in a colored hue of their choosing, making their body faintly glow that color. Glowing on their back is the mark of a Lion. The energy and hue creeps all over the body making the wearer look like they give of mist. The mightiest of the Vanguards gain this blessing. The aura hardens in response to impact and empowers the user by drawing out their potential. The Lords of Axiom posses these Marks and may give them to the worthy.

Tattoo Attunement. To attune to this item, you hold the needle to your skin where you want the tattoo to appear, pressing the needle there throughout the attunement process. When the attunement is complete, the needle turns into the ink that becomes the tattoo, which appears on the skin.

If your attunement to the tattoo ends, the tattoo vanishes, and the needle reappears in your space. Donning Armor will suppress the effects.

Mighty Aspect. While attuned to this, if you have an "Unarmored Defense" ability or any ability or effect that requires you to not be wearing armor, you gain this attribute. Your unarmored defense gains a +4 bonus to your AC and your base AC calculation is increased from 10 to 15 or from 13 to 15. Any attacks against you do not trigger effects caused by rolling a 20 and you gain immunity to critical hits.

Protected Aspect. While attuned to this, if you do not have an "Unarmored Defense" ability or any ability or effect that requires you to not be wearing armor, you gain this attribute. While unarmored, you can pick one stat besides dexterity and add the modifier to your AC while you aren't wearing armor. The new calculation becomes 10 + Dexterity Modifier + the Chosen Stat Modifier (10+DEX+STAT). Any attacks against you do not trigger effects caused by rolling a 20 and you gain immunity to critical hits.

Blessing of the Azure Lion. The power guides you to move swift like the maker of the tattoo. You gain Evasion to one chosen stat (choose when you attune to the tattoo): STR, DEX, CON, INT, WIS or CHA. You also gain advantage on saving throws on your chosen stat. 

Lords of Axiom's Rally. The power of a nation flows in you, spurring you to fight on. You have 1 charge of Rally which recharges on a long rest. You may choose to use a charge of Rally to do one of the following:
- The first time you would drop to 0 hit points as a result of taking damage, you can instead drop to 1 hit point, and your charge is consumed.
- Should you have a charge of Rally and you are subjected to an effect that would kill you instantaneously without dealing damage, that effect is instead negated against you, and your charge is consumed.
You can also gain additional features by passing the Trials of different Lords or Ladies of Axiom. Each blessing is unlocked by passing the trial of the corresponding God or Goddess:
- For 1 minute, you gain resistance to one damage type besides piercing. This resistance cannot be bypassed and your charge is consumed. Catherine's Blessing.
- For 1 minute, you may add your Proficiency Bonus to your damage rolls, and your charge is consumed. Kain's Blessing.
- For 1 minute, you reduce your critical range by 1, and your charge is consumed. Toria's Blessing.
- For 1 minute, you reduce the final damage dealt to you (per instance) an amount equal to your Proficiency Bonus (reduced to a minimum of 1), and your charge is consumed. Nexus' Blessing.

Legendary Resistance. Once per long rest when you would fail a saving throw, you may choose to succeed instead.

Notes: Bonus: Unarmored Armor Class, worthy person by one of the Lords of Axiom