Tainted Burst - A heavy explosion deals initially 117 damage to enemies in a 20m radius, up to 351 in total. At the position of every damaged entity a second wave of explosions will be triggered, each having a smaller radius and dealing less damage than the first. This way up to 4 consecutive waves of increasingly smaller explosions following the initial one can be triggered at the position of before damaged entities. Affects ground targets only. Knocks back small and medium units. Reusable every 20 seconds.