I used item toss as Lum against Geiger on Grave’s snow stage. I got a Mini Rook. Geiger had one lifebar left. I then got a fireworks item, which Geiger took two chip from. He was stuck in corner, and the mini-Rook walked up to him so I expected him to be dead from chip damage.
Instead of dying to chip, it looked like he got hit by the mini-Rook (even though I think he was blocking?), but did not lose any life. He then kept playing and trying to attack me, and actually got hit by the mini-Rook twice more without dying despite being on one life bar.
I killed him with a different attack
This was an online match