So I debated mentioning this since people are likely to jump on it, but I like competition so...
Heart trinkets can apparently give you so much life that you can survive a blast, requiring two to take you down. Somehow this guy would not die from the first hit.
Please tell me this is not a feature and will be patched.
There is a rare health power-up that allows you to gain extra health and it allows you to live more than one blast, it's not an exploit.
You can't use health trinkets in BN. I have a health trinket, it dosen't work. This "exploit" is just you missing people with your bomb, or seing them walk through the blast due to latency issues.
I don't think any of your regular equipment, trinkets included, is supposed to make it into BN games, so I'd bump this over to the bug reports forum.