Runes are the letters in a set of related alphabets known as runic alphabets, which were used to write various Germanic languages before the adoption of the Latin alphabet and for specialized purposes thereafter.
One of the two forms that a Sol Cat can evolve into after opening the first cell in Limbo. Choosing to take a closer look will result in Rand evolving into this form. Rune Cat can perform the combo Twin Vise with Kokatris or Shoklam. It is a two hitting dark element bite attack that hits all foes. Compared to its other form counterpart, Kaos Cat, Rune Cat is more magically focused, and has more support skills that can better assist the player's party. One can say that this choice reflects the "Lawful" alignment path that Rand can evolve into.
Devil Children Messiah Riser[]
Rand will evolve down this path if Jin picks the first choice after beating Behemoth in Tyranog.