Glyph of Stars changed in the recent beta build (15657) from a lightning effect around the chest/feet to perhaps the coolest aura-like effect in the game. Balance Druids can shift into Astral Form, which makes the caster’s body transparent and ghost like. Additionally, stars twinkle above their heads and then fall to the ground at their feet. I threw together a quick video to show off the new effect!
More about the Glyph of Stars and Druid Cosmetic Glyphs at: