Sun Rune

History
The Sun Rune is One of the 27 True Runes that governs over the great power of the sun. The Sun Rune can be a terribly destructive weapon or a nurturing restorative force. The Dawn and Twilight Runes are its guardians. They give guidance and direction to the Sun Rune.

Unless the bearer possesses both twin solar runes in their body, the Sun Rune's curse of insanity will overtake the host's mind driving them mad. By bearing all three of these runes the curse is negated and the possessor can use its great power however they see fit--to destroy or nurture.

Like all True Runes, it grants health immunity and immortality to its bearer. The Sun Rune is so destructively powerful it caused the annihilation of the entire Southern Continent by an ancient mad king. However, the Sindarians used the Sun Rune and the 2 lesser guardian runes to bring restoration back to the land.

According to tradition, the Sun Rune was once bound to the Night Rune until that Rune transformed into a sword and broke the bonds. The fragments from that separation became the Dawn Rune and Twilight Rune.

The Sun Rune has no current bearer, but the most recent was Arshtat Falenas. Notable past owner include the Ancient Armes King and the First Queen of Falena.

Attacks
If the Sun Rune's spells could be seen and used. Perhaps they would look like this:

Using the True Rune Alone: Using the True Rune while possessing the Dawn and Twilight:
 *  Blinding Light: 60% chance to temporarily blinds all foes.
 * Scorching Spheres: Captures all in a targeted area in burning spheres for 400 dmg or instant death.
 * Radiant Rebirth: Cast auto-revive on 1 ally. Restores all HP upon him reaching 0.
 * Blazing Sky: 1600 damage to any foes and allies in an area.
 *  Blinding Light: 90% chance to temporarily blinds all foes.
 * Scorching Spheres: Captures foes in a targeted area in burning spheres for 400 dmg or instant death.
 * Radiant Rebirth: Cast auto-revive on whole party. Restores all HP upon them reaching 0.
 * Blazing Sky: 1600 damage to only foes in an area.

Video of the spells:
https://www.youtube.com/watch?v=R45EzQWLRhw