magma cube

when magma cube dies, role a 20 sided die: if
the die reads an even number, put 2 medium
magma cubes on the battle field, if the die
reads an odd number, put 3 medium magma cubes on to the battle field, if the die reads
a number higher then 15, put 4 medium
magma cubes on to the battle field.
protection from red.
"they're too big to be killed with a sword"