This is City level. I think that may be counterproductive to determining a Low 7-B placement.
50% boost to all stats from Dragon ranking in the species hierarchy.
That said, I may disagree with this particular one? As I mentioned on discord trying to classify a Trigger as a species is deliberately extremely strange- they exist on any given plane (or Layer, in universe) and thus intersect with Humans, Demons, creatures lying in spaces between dimensions and are emissaries of other beings lying in the Energy Layer, but they don't really follow any single set of rules, most prominently of Biology (thus letting them shrug off whatever doesn't hit every layer and generally being fine with stuff like being reduced to a skeleton and healing from that overtime)
Either way, the Lizard Wizard certainly isn't hurting for being high end on the scale, considering he fought The Wife Beaters after their fight at Din, where they escalated in power significantly from 3.945949998273842 Megatons.
I also don't really get speed equal here, unequal are the primary conditions for the strongest thread and it's basically dead even when accounting for all stuff
Either way, in terms of things beyond AP and the last gateway to the fun, the opening hax;
His main thing is cutting and affecting souls, which in Ark are Type 1 Concept, Type 2 Information, and all mental related aspects, which exists in a separate plane of reality.
The Lizard Wizard resists all of this, since Gashes inherently destroy everything up to the conceptual and something like Sequence Deviation is something he could handle just fine
His astral (soul) weapons can also imbue his mana into people (Soul alike), which he can use to make people spontaneously explode by turning them into a metaphysical bomb (Like Killer Queen from Jojo), he can also corrupt them into husks.
Basically everyone in the Homewreckers can resist Warrane Ambre invoking the same on them (though they often get overwhelmed just because the guy can jack up the power so easily by the mechanics of his abilities, but we do see Blur pull it off against the baseline, which is someone exploding all the same)
Corruption's a little nebulous, but stuff like Penelope's property inducement and all manner of physical warping are something Triggers can live through, and the Lizard Wizard can heal at extreme speeds to a Low Godly extent for both of these
He can also manipulate causality in order to attack someone as if they never developed all of their skills across history. For example, he can hit someone as if they have the stats from when they were a baby, ignoring pretty much everything about them.
Admittedly I never properly slotted this onto the page and I'd have to dig it up to properly have the scan at the ready in Imgur, but we have seen Triggers can "right" their personal timelines against a Random Event that ended up invoking different eras of time onto whoever it hit, and given Xander was both a lot weaker and didn't have Power Defense, the Lizard Wizard could probably just bar it from happening in the first place
Now for the actual fun bit. Lizard Wizard and Koji are barred from actually getting off one-shots for a lot of reasons, so...
The actual fight part of this battle
The Lizard Wizard just has a very high range of options, and he's bound to whip out whatever he thinks is useful. And considering tier restrictions only really bar him from (or at least, I think, I may be confused about the exact rules here) using the Tungsten Colossus, the Gash Basilisk and maybe the Chimera, that's a lot of painful stuff to throw out. The thing that made him really dangerous is just action economy, he can pull out creatures very easily and amass a horde as he uses his own body to attack an enemy alongside them.
Something I didn't mention in terms of "he's a hax wall so good luck not instantly dying" for getting him into the Low 7-B placement is the fact he's a Bleed Elementite. What this means is that almost every ability he has specializes in ensangunating targets- it's not much, until you realize this is something that works on Triggers, and despite their innate regeneration, and also degraded at their Energy supplies. Heck, Xander having Rapid Regen and equating to the Lizard Wizard didn't stop him from having issues with recovering, and he basically had to totally circumvent it with Elena's Time Capsule (item that lets him revert temporally to heal all kinds of damage).
Considering Triggers also have extreme stamina on top of that, even the endurance of Koji might have a timer get placed on it every time he gets a move like that off. And considering he's unpredictable/skilled enough to land shots on Xander Phoenix despite his own capabilities with precognition through analyzing numbers, those hits are liable to land as well.
So I guess, beyond the sheer versatility, big move after big move firing off, the main thing here comes down to who actually lasts. The Lizard Wizard's resilience against regeneration negation (and Koji's lack of it, as far as I can discern) alongside just healing really fast and having the stamina to back that up when it wears down,
and Polywanagonaland serving as a Phase 2 where even Triggers can't really directly hurt him (and he actively gains Energy from the blood of opponents, and he gains access to Loyalty where he can just teleport a swarm of Gash ants into enemies to inflict a bleed that negates Mid Godly)...
