Wait, oh my god. IT'S YOU! Yeah, your videos are neat! Actually, let me submit several moments for you. I'm in Oracle 6/Phantom 1 lobbies, so it's certainly high elo (even eternus players would agree that is the start of high elo transition).
MatchID: 76702698
The theme is about stacked odds, sacrifice, the power of friendship and rewriting fate.
43:45 - They have triple rejuv, sieging at late game. Seven pops unstoppable and ults to force us to flee. Swallowed the paige ult and knockdown (why would she try it???). Lash ult into double kill, killing 2 big targets. Graves smashed by Lash. It looks incredibly bad, especially in high elo where players can counter. Remember, 3 free revives, sieging.
Celeste, my duo, tries to back door. However, Venator and Drifter shreds her. Rejuv gets popped by Viscous, still full team of 2 rejuv vs just spawning team, on final patron. They have to push all waves and win that way.
45:30, with the hurt of seeing my duo perish, I decide to take matters into my own hands. Could use the voice line of "I can't let you stop us."
I was thinking for the moments leading up to it, it plays this song.
List of voice lines for Dynamo, voiced by John Patrick Lowrie, as well as lines from other characters referencing Dynamo.
deadlock.wiki
And at 45:30, sync it up about lyrics of breaking down, "falling on the floor", etc, and as the drums on the song at 1:44 kicks in, have Dynamo (me) fly right down and cast a 4 man ultimate. Slow motion of Dynamo ulting, of course, zooming up to my team using abilities, fluctating the speed as it comes out my teammates abilities. The voiceline that would go best is "You are not winning this!" and "This isn't the end!".
Then the music fades, and Dynamo proceeds to get sentimental, having a voice line saying "My friends don't appreciate being dragged around by you.", and single ults again on Drifter. Dynamo could say "Now!" as the music goes back with full intensity in the 2nd chorus (4:20). Then it could go slow mo again, as the sound muffles and the music soften as he says "So this is what it feels like!".
You can use a refresher voiceline saying "One more time!"
Then as I clear the waves and go after Drifter, it can go into text mode as Dynamo refuses to lose (as that what I was thinking at that time), I was thinking it cuts to a cinematic shot as Dynamo says he's sorry.