Keith activated his shield to try and hold off what he could as well, the cyan blue light flashing into existence among the orange-red glow. Radley was the most vulnerable of the group with no armor or shell that he could see, so Keith moved to try and cover him first. He grunted in pain as he felt debris pin his left leg.

The shield was big enough to cover most of the pair as long as they stayed close, but it was primarily their heads and torsos...

Sorry, Donnie, but Keith had to make a choice. His shield couldn't cover all three, and turtles had shells. Humans didn't.

After a moment of getting his bearings back after the collapse, Keith glanced back towards the bayard to see if he could reach it, but holding the shield in place made it hard. The blade was still stuck through the wall...

Maybe someone outside would see it...