Are there any cheap tactics that a 5x Druid boxer can pull off using Wild Mushrooms then Starfalls?

I'm thinking BG or Arena?

http://www.mmo-champion.com/content/...ruid-Cataclysm

Wild Mushroom:


Grow a magical Mushroom with 5 Health at the target location. After 6 sec, the Mushroom will become invisible. When detonated by the Druid, all Mushroom will explode dealing 1300.06 to 1573 damage to all nearby enemies within 10 yards. Only 3 Mushrooms can be placed at one time.
Use Wild Mushroom: Detonate to detonate all Mushrooms.
11% of base mana, 40 yd range