This doesn't exist in Minecraft; it's just fiction
Wither Creepers are Hostile and the most dangerous and strong creeper found in the BlackDown and BlackNether.
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These creepers are more dangerous than a regular Wither. Their explosion are stronger and bigger than a Mutant Creeper. They are very hard to kill when in Survival, Hardcore or Adventure Mode. They can even destroy an Obsidian block despite the fact that they are very hard. Every mobs is afraid of them exept Dragons, Wither-like Mobs, and the Withers themselves. Wither Creepers can be created, with the arrangement of blocks and heads below.