Between Manphia and Azazel's slashes, Klumn's magic stones, and Susan's scorching ray, the cube takes a combined total of 58 DAMAGE! The massive pile of slime dies...
Or does it? The creature splits! There are now two, slightly smaller cubes within the room! We shall call these Cube 1 and Cube 2, now.
Cube 1 makes a lunge at Azazel, make a Dexterity Save, or become engulfed! (DC12)