I decide to fill in the gaps that have been created by the recent fights so I start by catching a Pawniard.
I then proceed to catch a Croconaw.
As I'm leaving that area, I encounter a Shiny Remoraid, I always play with Shiny Clause on, because I don't think I'll find Shinies in the Nuzlocke. And of course I have to catch it.
I then get the last encounter I need, Marshtomp. Which means training time.
The final fight with Zenith started with his Excadrill against my Swampert, a battle that landed in my favor.
Chandelure is next but Scourge has no trouble taking it out.
His Groudon is next, but I employ an old strategy with Bisharp and Metal Burst.
Next our two megas clash, with my Feraligatr coming out on top.
His Volcorona is next but my Gigalith crushes it like the bug it is.
Last up is Heatran but one Earthquake from Delta Muk is enough to take it down, winning me the battle I was most afraid of.
Zenith is over, I remove his control over the region and gain the HeartSwap ability from Manaphy.