Unpopular opinion: This is probably my favourite of the massive RNG brawls.
This one is just big dumb fun with legendaries. The fact it's just all these OP effects AND you get multiple of each one just leads to hilarious combo effects you would never see in the normal game.
I honestly think this is one of the ones where they did the Brawl concept right: Over the top rules that are utterly broken in the normal game, but are just broken enough that they are fair to both sides, usually.
2
When they take an existing brawl and do it a second or time (or more, in a lot of cases).
Crossroads anyone?