This was my first post from August. and it got some good feedback. Honestly you can still refer to my old post as it covers many of the basics. In this post, I’ll go over more specific situations and what to do with them.
Ok, so first off there isn’t much meta outside inverse speed bugs and Juggernaut.
Hilariously Juggernaught is pretty OP right now if you don’t imbue you’re a Berzerker but with 1k extra health. Vetex plans to revamp Vitality but it’s pretty funny nonetheless.
I switched from Rush Down mage to Thermo Berzerker once Dark Sea dropped and haven’t looked back. The trade-off was less size for more DPS. Rush Down classes are great for starting the game. As you play more competent players you will realize it’s fairly hard to compete against them when you can’t match their DPS and mobility. Rightfully so usually the more DPS a class has the less size it also has in return which is a fair trade-off. You have to aim if you want more damage potential 
Whether or not you play a class with high DPS you can still win by just being aware and in the moment of what your opponent is doing. I don’t think too much as I play anymore cuz I kinda just built up habits and reactions for certain playstyles and scenarios.
What I do and teach with my clanmates who train with me is, I went over movement and aim. Your movement is dependent on your assessment of your enemy. I’ll put 3 categories of different reactions to different enemies. We have aggressive, assertive, and passive. If you’re being bum-rushed aggressively use a clockwise movement and you won’t be touched. So as you’re circling your enemy he will be firing attacks and missing and you just punish his endlag on his attacks. As dumb as it sounds it works Lol. Some people are capable of playing aggressive and adaptive. For example if they catch on to your circling technique they will stop chasing you and predict where your going to be and cut you off. If you want to be a step ahead of them t jump and gain as much height as possible. If you know where they are going to try to cut you off at then you know where to assume to attack them. Now assertive enemies usually are very responsive and think more of PVP as a chess match. They will simply use the best move given their position. They often have insanely good aim so even if you have really good movement it’s futile if you don’t parry their attacks. To counter this playstyle you have to get them to follow a pattern, use a similar sequence of moves or attacks sparingly make them think they have you figured out. For example say I’m a conjurer fighting a Berzerker. One sequence I can repeat with out getting punished heavily is step back BEAM, step back, step back again, BEAM. Once he starts closing the distance on you. Instead of stepping back again use sword draw on your katana or whatever sword you’re using then to slash into him as he’s trying to chase you. This is when the sequence gets nasty you do the step back beam sequence again, but instead of sword draw at the end of the sequence you do a t jump or rising tide either one works then as he passes under you, you use sparrow thrust. If you landed all you attacks up to this point, He’s probably at half health or less with you probably still at full health. The battle isn’t over though. You can now switch to the offensive, you have to be careful still. Remember your playing against someone who’s level headed and they WILL turn the tables in there favor if you don’t stay level headed as well. Berzerker is especially tricky at close because they’re so agile and can get around your attacks fairly ez not to mention hit REALLY hard at close. With that said if you can stay defensively aware you can finish the job fairly easy as he comes into attack be ready to parry and use a grab if he crashes into you or sparrow thrust if he crashes past you. In the circumstance im talking about using sparrow thrust if you can tell he’s about to miss crash which he could do purposely to position himself to land shot from behind you. You want to make a quick 180 and use sparrow thrust. If at any point you lose track of your enemy DON’T stand still, literally move in any direction just don’t stand still. Next is Passive enemies, and I’m not talking about pushover little Timmy I’m talking about backdashers of all archetypes everyone complains about back-dashing mages but backdashers take many forms. NEVER move in linear lines it makes you very easy to hit, you want to curve around into your enemy. Not necessarily a circle but like this " ) " < you see that curvature right there?! Yeah you want that not too much but not so little that you might as well be moving linearly. This is how you successfully chase down a back dasher.
Either angle you use " ( " << >> " ) " depends on where your trying to corner him. So be aware of your surroundings even in an arena like Elysium there are corners you can back them into. One thing I’m working on currently ESPECIALLY against passive players is being patient, it will be a long fight if you want to win. Because they are very slippery even when you corner them and get a good combo off they will get away. and how fast you can kill them just depends how fast you can corner them again. A truly talented passive player will mix up jumping towards you so you go past them between their sequences of back dashing which is will be very annoying for you if your not paying attention closely.
As I stated before I don’t really think about this as I fight I kinda just do it preemptively through practice so if you want to get good find people who resemble the playstyles I mentioned and practice against them till you counter their play style naturally. Ultimately after that, it comes down to who’s more in the moment and most reactive to what’s going on in the absolute present.
I personally use REFLEX - Aim Trainer - Roblox
for practicing my aim, first person to send me a screen shot of them hitting 90 percentile on flick shot gets 20k galleons, mine is 88.7% 
nah but mage fights go kinda crazy too