It's really do i see videos on youtube that ppl solo orca of doom?

Wanted to kill orca of immortality with a 170 BL but didn't look at the time so he dissappeared and orca of doom appeared so the bl went in with bm2 and got 1shot with 4.5k hp then i went in to make aod then started to attack him but i hit him with 10~50 and he hits me with 1000 while i'm in aod (more than 3k def)

So how do u guys solo it i would apprciate if u guys make a video and post it here