The Plexus Sentinel marks its current target, then fires an arcane charge that inflicts 150 Arcane damage to players within 10 yards, and 100 Arcane damage to all other players. Players farther from the target receive less damage. This explosion leaves behind Potent Mana Residue. The impact causes the primary target to take 1000% damage from Obliteration Arcanocannon for 45 sec.