The Aforementioned Elephant in the room

(JFHB)You attempt to channel the power of nature into a heavy item you are currently touching using a command word("can we address the Elephant in the room?"), imbuing it with incredible power and changing it's form.

The item expands and takes the form of a 20ft tall elephant made of the material it was cast from, forcing any creature(that is not the caster) beside the elephant to roll a DEX saving throw or take 6D6 bludgeoning damage.

The elephant has 200hp and an AC of 20, and may be commanded to move up to 20ft on the casters turn with a bonus action. The elephant may not attack

Any creature smaller than the elephant that lie in it's path as it walks must roll DEX saving throw or get squished and take 6d6 bludgeoning damage. 

When destroyed or dispelled, the elephant simply crumbles into rubble of it's given material and retreats back to the whims of the earth.