Blood bending is so fucking terrifying. Like, that shit comes so far out of left field the first time it's shown off and it's the perfect mix of "oh yeah, I didn't even think of that; makes perfect sense" and "hoLY SHIT WHAT JESUS".

To give credit where credit is due they got pretty close to capturing that lighting in a bottle a second time with Zaheer's breath bending. It didn't come quite as close on the "OH GOD OH FUCK THIS IS TERRIFYING" scale but it got as close as I think anything possibly could've.