OoC @Slenn: Oddly, no. it doesn't use those.
Doom tried to dodge the beams the sisters trew at it, but couldn't do so because of the increased gravity.
EMily's plasma shot struk Doom on the chest, shattering the red crystal and covering it in third degree burns. Winona's neutron beam struck it in the chest also, breaking down its flesh and exposing its ribs and black heart. Sara's fission beam struk Doom's lower body, tearing away at the bone-like material. The needles from Reimu's Demon Sealing Right hit Doom in several places, further adding to its wounds.
Gerry's bolts did what they always do.
Roaring in pain, Doom cast a Absolute Zero spell, sending a wall of ice towards the group that threatened to encase them.