Galgalim said: You see, ZUN says that Rin can control wind (Aya) and Flower (Yuuka)
Associated with her are the attack types 花符 (Flower Sign) and 風符 (Wind Sign).
So, in accordance to what you said, Rin Satsuki may yet be one of the strongest Ex-Bosses that you'll ever face in the history of Touhou... Fast and Strong.