I Have the Answer to Mega Malamar

An army of metagross drop in from above all interlocking with their magnetic powers and using protect creating a giant shield, under the cover of the shield the garchomps retreat.

They all mega evolve using the invincibility frames so they don’t take damage. They fly into the sky, break up, and come down like comets with meteor mash.

The metagross use meteor mash on Ninetails while the garchomps come up from a dig using earthquake.