Portal ClusterPortal Cluster fires in every direction at once. 116 shots, 60 seconds, a 360 ring of fire opening up overhead like a wormhole has just torn through your back garden. Spinning comets, crackling stars, breaks that come at the audience from sides you didn't know fireworks fired from. Two kilos of powder, a minute of all direction chaos, Gemstone's hero piece for anyone who wants the sky to look attacked. More compounds in the compound range.