This was FFA, that killed the Doomed Titan to win the game.
It's not the best clip (tbh, Archer kills happen every game for me so I never thought to)
but bruh, this is so consistent to pull off in this game
No Attack can do damage to Doom state no matter how powerful it is prior to being in it, but being able to OHKO Doomed Titans (Amped Only), giving you like 70% makes it by far the most useful in the game.
The amount of MGL you need to hit to equal a since Archer is enought to really increase your chances of dying. I think the Archer is balanced around its reload, but if you reload in Phase Shift, there's no issue at all.