Magma Cream + Oozing Potion = Magma Cube Potion

Similar to the oozing potion, a magma cube potion could make small magma cubes spawn when a mob dies. This is extremely useful in making froglights more obtainable, because there's no reasonable way to make frogs eat magma cubes in large quantities in the current game without exploiting the nether roof.

The recipe to make the magma cube potion can just be brewing a magma cream into an oozing potion