Mabaran energy surges from the barbarians strike. Enemies must make a constitution saving throw, half damage if successful and 1 round of exhaustion. On a failed saving throw, deal full 2d6 necrotic + Intelligence modifier. Only Castable while raging, no concentration.

At higher levels: 2 pulses at 5th, 3 at 11th, 4 at 17th; separate attack rolls per pulse.