Snapped my second ever chain

[weaponsgrade]

In all my years riding I've only had one chain snap on me. Last weekend I had a second. I was on my mtn bike and did a somewhat poorly timed shift under load. I didn't think it was too much load and I've certainly made worse shifts over the years. But somehow the stars aligned and the chain snapped. Luckily no injuries. I carry a Oneup EDC multi-tool which has a chain breaker. It's the V1 version of the tool and I remember reading somewhere how the weak point of the thing was the chain breaker. But, it did a fine job cutting out the broken link and letting me join the remaining ends together. The chain was too short to handle the low gears, but at least I was able to gingerly pedal out. Chain was a waxed YBN 12spd with about 350 mtn miles.