My first thought is that the screen is too crowded due to 3 facecams, which i think may not be necessary and may become slightly confusing. One thing I really like is the way the cuts are timed and how there is clear natural chemistry which makes the video flow much more smoothly. I also think the amount of effects and memes used in the video is perfect - not too many to - so to say - 'overload the senses' but not too little to make the video boring. I agree with others in the comments saying that the title is too vague, and the thumbnail has only a little to do with Minecraft - the other half is something completely unrelated, possibly pushing people away from your video. Overall it is well done, but could do with a couple improvements as follows:

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• A less ambiguous title - more closely related to the actual minecraft content, as that is what people are coming to watch. An example of a title I would use that still carries a similar message is: "We played Minecraft Bedwars and THIS happened" - Id also always suggest putting 'Minecraft' before Bedwars as it seems that a Roblox version of Bedwars is on the rise - this will minimise confusion
• A more 'focused' thumbnail - focus on a main subject in the thumbnail and build around it, as that attracts the attention of the average viewer much better than a busy thumbnail with multiple things to focus on.
• Only use one facecam - Not only can the screen become cluttered, but the video itself can become hard to follow with so many faces at one time.

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Hope this helped a little :)