Guild Wars 2

The shatter and the phantasm hit. That’s what the damage report says, and fits within normal gameplay mechanics.

This burst combo was available before the recent buff to mesmers. If Jumper had been luckier, and landed his backstab, I imagine the Mesmer would also be dead.

This is why you mostly see a Thief popping a Mesmer’s portal then leaving, and not engaging in a 1v1.

If Jumper had more time, he could have engaged with shortbow, destroying phantasm and lowering the Mesmer’s hp enough that Mug and CnD would have killed him.

Afraid that happened without use of a macro Jumper.

You were hit by an Illusionary Warlock strike. At the same time, the Mesmer used his stun breaker – Mirror Images – creating two clones and did an instant F1 shatter.

You were hit by a three hit Mind Wrack. 3k per hit is high though, especially as he was not might stacked.

In theory, using an F3 shatter before F1 with use of a macro would have stacked vulnerability first, increasing the damage, but I couldn’t see this in your video. You could have checked your combat log to be 100% sure.

I’m not saying it isn’t a broken mechanic, just that he may not have been exploiting.