How does your character's elemental power manifest? Draw or write them using their elemental powers.
As a kangaroo/deer mix, he can use his good leg to deliver a strong kick, provided he has something to lean on. Combined with his Earth elemental powers, he's able to summon and kick up rocks and boulders to use.
The Slime is stronger than you first thought! Draw or write about your character covered in Slime.