Yomi is seen as an underpowered nation, especially since they need more gold than practically any other nation in EA (no Sacred research mages, expensive unarmored non-Giant troops) and Turmoil-3 is a requirement. Yomi is also seriously underpowered early because they're incredibly vulnerable to a Bless rush; the only units that can stand against Sacreds are the exact same units that die horribly to mass Banish. Yomi is very powerful in the midgame because they can mix and match several powerful strategies (Flaming Arrows, Ghost Generals, Darkness, and Dai Oni Caster-Thugs or SC's) and their researchers aren't terrible; they're just really expensive. We didn't get into the endgame here, but I think that Yomi needs to make some serious moves because the mage upkeep eventually spirals out of control.
I ran with an Awake Idol of Man (1F, 2A, 2N) with 8 Dominion, 3 Tur, 2 Prod, 3 Growth, 3 Luck, 1 Magic; Awake was for a strong early Dominion spread. I think this was a terrible Pretender choice; Yomi needs to either have an awake Pretender that can beat an early Bless rush or have an awake Sage to accelerate early research and get some summons that can stop the rush.
So, here's what happened in the early game, which was mostly terrible as illustrated by the Province, Forts, and Income graphs. Remember how I said that Yomi was gold-dependent and runs Turmoil 3? Yeah, being near the bottom of those graphs as Yomi is pretty much the worst thing ever.
My very early game was strong because I won Dante's Stingers, but I lost them on Turn 5 to Ermor. Over the next 5 turns, Ermor also took my main army (w/ prophet) and 3 provinces including the farmland chokepoint province. I staled twice around this time period, which didn't help at all, but Machaka attacked Ermor soon afterwards and the expected crushing army never came. I took back my 2 provinces, but Ermor got a Fort on that farmland. At this point Tir had become visible to the North. I took a couple provinces to the West and ran into Berytos near the Amazon throne.
If Machaka doesn't attack Ermor there, I almost certainly die. I had no answer for a bless rush with high-morale troops that had cool things like shields and armor.
Stalling on provinces here really hurt me. I threw a bunch of guys against the Amazon throne simply because I couldn't deal with their upkeep, and Berytos ended up taking it and building a Fort on the cave province that lead to his Capitol. Then Tir took out my other expansion army by expanding to the same location. On that turn, he contacted me and we agreed to go after Berytos and leave each other alone. I build up a massive force over the next few turns, and move out with Hannaya to take the cave fort from Berytos.
If Tir attacks me instead of making a truce, I almost certainly die. He was set up for heavy Javelin spam backed by his Sidhe commanders, who just happen to have a Holy level so they can Banish my Oni.
I invade Berytos' cave fort, and he invades my two coastal provinces with Temples with groups of 60+ Spearmen. He takes my other two coastal provinces on the following turn, when I'm storming the Fort. I take out one of those groups with a Hannaya that fell back with a bunch of Oni to keep my Capitol alive (and stop starving my Bakemano); on the same turn, I move to the adjacent Cave province where I run into his Pretender and a bunch of elephants. I lose practically every melee Bandit, but my Bakemano Archers and Hannaya end up taking out the Elephants and his Pretender. Berytos contacted me at this point, probably expecting to gloat. I needed to retreat regardless and said as much, but I offered to back off and leave him be if he pulled his Spearmen away and let me take back my core provinces and the provinces around the Amazon throne. I knew Tir was being a huge PITA for him and he probably couldn't afford to fight a war on two fronts.
If Berytos decides to keep pushing, I'm not sure I recover at all. Sailing is insanely powerful on this map, and losing provinces like that wrecks my income. I also have no recruitable Thug chassis and a force large enough to repel his Spearmen costs way too much in terms of Upkeep to feasibly use.