Runes

Link: Main Page

Runes unlock at level 6. There are four total slots:
 * 1) 2nd slot - lvl 20
 * 2) 3rd slot - lvl 30
 * 3) 4th slot - lvl 40

There are four elements, each with 12 runes from ★ to ★★★★★. There is a ring of color around each rune. When the rune activates it is surrounded by yellow sparks and the ring decreases, letting you know how many remaining times the rune will work (i.e. if the rune has a max of 3 activations, 1/3 of the ring disappears). After a rune has activated the last time, it is gray .