Apollo is the Ancient Greek god of light, truth, medicine, music, poetry and the prophetic powers of the Oracle of Delphi. Athena is the goddess of civilisation, wisdom and justice.
In Ancient Greek literature it was not uncommon for the gods to come down from Mount Olympus to join in battle on the side of the favourite humans. In Homer's Iliad the gods frequently join in: Aphrodite fights for the Trojans, protecting Paris and Hector until an order from Zeus forced her to abandon the latter. Athena and Ares, god of war, also fight, and Ares is injured.