Lightsaber blowing up a planet feat

[InfiniteDay]

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As seen here, the Kyber Saber, a lightsaber made only out of Kyber Crystals, accidentally blows up an entire planet (or moon) in a casual strike. What would this get?

 

[InfiniteDay]

Bump.

 

[AbaddonTheDisappointment]

We don't really see it completely blowing up the planet/moon, really just splitting it and an explosion in the middle which would give it this rating if we're just going on splitting it and assuming it's a planet. Splitting a moon would likely be High 6-A iirc.

The explosion itself could likely be calced but given the scale, it'd likely be around mid to high end tier 6

 

[FluffyCreatureZ]

If that was a moon, this could get as high as moon+ to small planet because of kinetic energy.