It was Ares, the god of warfare, bloodthirst, and/or slauter. His symbol is the boars head on a Spear.
Spear of gods
her symbol was a spear
His symbol is a spear and a helmet, his animal symbol is a dog, and his bird is the vulture.
The spear is a weapon of war, Ares is the Greek god of war.
The spear, helmet, dog, chariot and boar.
In the Illiad, likely the spear of Patroclus which killed him.
Spear, helmet, dog, chariot, boar.
The Trident of Poseidon
None of the Greek gods or goddesses had a unicorn symbol.