I have had a Dire realization, Krog is the best character in endless, even more than scutter and mudgill. Radiating him gives him slam and stagger, along with bellow+chorus, meaning he is a minor healer, deals thousands of damage per cast at max power, but more importantly
he reduces all enemy turn gauges by 10% per attack, and with beatdown triggers from max speed urso that happens faster they can attack... You see where this is going, and could have made my run immortal if I didn't Radiate Tizik