Predictions but based on the trainer card characters
MichaelderBeste2 vs LordTheodore: I'm not too sure what LordTheodore's character is, it looks like some japanese symbol or letter. Since Victini can create letters, we know that from V-create, I think it's fair to say that Victini wins this one
LoSconosciuto vs Grandmaster7890: Lance vs Zard-X. Usually this would be a terrible matchup for Zard, but since it's mega and Lance usually uses slow dragon or flying types Charizard should win this with it's added dragon typing. However Lance does have an Aerodactyl which just needs to get rocks up.
soTsoT vs teresbahji: Guy with gun vs cavewoman, guy with gun wins pretty easily since cavewoman probably doesn't have modern weapons
pokeblade101 vs Kaneki-san: Red doesn't talk so pokeblade just won't schedule and therefore loses by activity.
sunsets vs Puckbud12: Really depends on where you are fighting this, but i don't think we are fighting underwater unfortunately so the swimming gear won't be that useful. Mega Beedrill should take the win on this one.
Luchik vs tob: Idk who these anime girl characters are but Tobi's anime girl is playing Ring Fit Adventure which means she is a gamer. Therefore Tobi will win.
Casual dot exe vs arcexofficial: Casual's man only has a knife whereas arcex's anime girl has some crazy weapon or something, idk i can't see what it is but it looks insane. Still all that light coming out from the outfit makes it easy for Casual's hooded man to spot and hide from her accordingly. He can then sneak up with his knife and win.
HaunterBoy28 vs Trefleuh: We all know Piplup is better than Haunter, especially in Piplup's home region Sinnoh where everyone hates Mindy's Haunter, but why would you give it a clover to make it a grass type, it's now weak to Haunter's Poison attacks so therefore Haunter wins.
Xceloh vs Crunchman: This matchup really depends on if Crunch's train is moving or not. Jonesy from Fortnite would never be able to take an attack from a moving train, but the train is easily mined if it's standing still. You already know Jonesy wants to mine the train too because he needs resources for his build battles vs other toxic children. Only way for the train to start moving though is to activate it's Steam Engine, but that isn't possible as Jonesy doesn't have water or fire type attacks other than a rocket launcher which is a super rare item meaning it's highly unlikely the Train gets going.
Wigglytuff vs MultiAmmiratore: Wigglytuff is a pretty cute pokemon and therefore u wanna hug it, but if we have learnt anything from Super Smash Bros, then it's that Jigglypuff (probably Wigglytuff too) is a demon if it uses rest on you while you're close to it. Wigglytuff's Wigglytuff is sleeping which means it is out for blood.
Blui vs RandomPopplio: Blue usually loses the starter battle so i think Popplio got it this time
Typhlosion48 vs Michielleus: Hilda has already beaten Alder in Pokemon Black and White so I can't see it changing this time either.
El químico del pueblucho vs Forsh: Lucas would probably win vs a police officer normally, but he just looks super scared in this picture so I'm going with DUC's police guy.
longhiep341 vs Xiri: This really depends on what kinda minecraft block this is, but unfortunately we can't see because something happened with the textures. Still it looks like the red haired guy has a tool of some sort so he should be able to break the block eventually.
Failbor vs Chains of Markov: Brycen man isn't actually real, he's just a movie character so Calen just can't lose because the battle isn't real
Banbadoro vs Clementine: Clementine's pyjamas boy has a frying pan with an egg in it. Hapu's Mudsale is still a huge threat but if the pyjamas boy can get the Mudsdale to switch team if he gives the Mudsdale the egg, he might be able to turn the tide of this battle and i think that's doable.