Cacophony Unleashed In an enchantment-themed deck, Cacophony Unleashed can be used as a one-sided board wipe that can attack as a powerful 6/6 creature with menace and deathtouch when conditions are met
Decadent Dragons creature side helps with this, threatening to create Treasure Tokens when it attacks

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White doesnt get many mana-generation effects, but black has plenty
If you want to do some really silly things, you could always try effects like Warp World
For instance, if you cast Hellish Rebuke twice, each permanent which damaged you will cause its controller to lose 4 life