Sculpt Spell

Any other metamagic feat,

You can modify a an area spell by changing the area's shape. The new area must be chosen from the following list: cylinder (10-foot radius, 30 feet high), 40-foot cone, four 10-foot cubes, or a ball (20-foot-radius spread). The sculpted spell works normally in all respects except for its shape. For example, a lightning bolt spell whose area is changed to a ball deals the same amount of damage, but the lightning ball affects a 20-foot-radius spread. A sculpted spell uses a spell slot one level higher than the spell's actual level

You can modify a an area spell by changing the area’s shape. The new area must be chosen from the following list: cylinder (10-foot radius, 30 feet high), 40-foot cone, four 10-foot cubes, or a ball (20-foot-radius spread). The sculpted spell works normally in all respects except for its shape. For example, a lightning bolt spell whose area is changed to a ball deals the same amount of damage, but the lightning ball affects a 20-foot-radius spread. A sculpted spell uses a spell slot one level higher than the spell’s actual level

You can alter the shape of a spell’s area.