Don’t think I need to go into detail on the controversy with the tier lists right now as there are plenty of other threads about it (one being mine, in fact). There have been some changes, and for the most part I think the tier list has been rectified…well, for one glaring issue, anyway; why is Zerkerlot tier 1 while Heracles, Saberlot and Yagyu are demoted to tier 2. Just on Zerkerlot alone, compare him to his new peers; Rider Kintoki, Chloe, and Assassin Shiki being a few choice characters, and all three known for being sheer nukers, even when soloing. They all have forms of steroids and NP batteries, as well as hard survival (though some better than others). All and all, strong servants who can work in teams or solo and be able to take care of themselves. Looking back to Zerkerlot, he has none of those qualities, at least not on his own; while his NP is AOE and can therefore help him clear waves easier than ST servants, his NP gain is absolutely atrocious; even with a basic scope you’re going to have a hard time building up his NP without outside support. Sure, you can use damage on him to help build up the NP but that leads to the next issue; he’s as durable as toilet paper. No hard survival (or soft at that) and is weak to everything from being a berserker. One stray crit and he’s down. Even at full HP (roughly 10k before fous) enemies can easily dogpile him for the count. It doesn’t help that all of his skills are selfish, only aiding him when he’s a massive glass cannon, either. For them to work properly, too, you’d need a healthy sum of stars, so best get a servant with stargen or equip the right CE, otherwise he’s subpar on turn one.
For comparison’s sake, let’s bring up Penthiselea who was DEMOTED to tier 3 by the way. She has roughly the same stats as him, and has the same problem of no survivability, and for context sake she has a ST NP, so she’d have more trouble clearing a wave in one turn. On the flip side, though, she is better than Lancelot in every other aspect; massive self buffs to both herself and to the party with attack up and buster up, which turns any party into a wrecking crew. On top of that, she has an NP gen ability which generates 20% NP per turn for three turns at max level and she has twice the NP rate of Zerkerlot, so she is much more likely to NP spam. All around, she’s a better general use servant (at least according to me).
And let’s not beat around the bush; the reason why Zerkerlot was moved to Tier 1 is simply because of Skadi releasing in NA due to her allowing him to NP spam. While ignoring the fact that his NP is almost entirely generated from her alone so it can theoretically be done with any other berserker, the strategy REQUIRES someone to have their own Skadi to have two on the field in order to make it work. I don’t think I need to tell anyone here on how likely it is to get her, so for those who don’t have her is Zerkerlot still tier 1? If you ask me, absolutely not. Even with a support Skadi, Zerkerlot’s performance is not improved above similar quick-oriented servants. Whenever anyone pulls up his page on Gamepress, they need to keep in mind that the “tier 1” for him comes with an asterisk: “must have Skadi.”
Farming wise, I do really like Zerkerlot. For about a year now I’ve been partnering him up with my Tamamo Cat, Arash and Merlin for 3T farming. With that experience, though, I can most definitely say that he is NOT tier 1. That spot belongs much more so to a servant like Heracles who not only hits like a truck, but can last much, much longer in battle.