I have watched those weapons few times and i think i know all the specials now,so im gonna put them here but buttons are still mystery im gonna guess those.
Hammer of Atlas: L square: Poseidon crest like lanslide but rocks/granite. L triangle: Similiar to Gow2 Atlas quake magic when spewing out flaming rocks.
Hammer of Hephaestus: L square: Similiar to cronos blades L triangle but larger orb. L Triangle: Line of electricity long and kinda wide too,similiar to Cerberus blade L triangle but longer and wider.
Spear of Hyperion: L square: Draws lines of red electricity on ground. L triangle: On first part does similiar to spear delay attack animation and splash damage,then leaps/teleports? forward and does this 360 degrees attack/splas damage.
Tryed to explain and use some "similiar moves" so that those would be easily understandable...
Ares is not a freaking God of fire he is a GOD OF WAR in this game they some how turn him to FIRE like i mean **bleep** is why i dont like to play him Ares should be all about energy war energy attacks not fire