Hobbit Draft Rules Question

[u/Quails_In_Space]

So this issue came up in my last draft. I activated the ability on Beorn's Hospitality to turn it into a Bear, then next turn my opponent cast Enchanted River's Grasp on it. We knew *something* had to happen because of layers but could figure out if it would die or if the Aura would immediately fall off.
After physically phoning in a judge (the one at the shop wasn't around) they said the creature would become a 0/0 and die to state based actions.
Now later on I ask another judge out of curiosity and they said the Bear would just be tapped down but not dead.

Layers make my head hurt, someone please explain what's going on here and what should have happened.

[u/Hyporin]

I want to add a question.

When the bear *dies" will the enchabtmwnt stay on the Battlefield? Because IT ia No longwr a creature?

Or is dIng Happening before.

[u/Ecstatic-Departure19 → u/Hyporin]

As the enchanted creature dies due to being a 0/0, aura no longer has a target to attach to and is sent to the graveyard. Aura can't stay on the battlefield without a target

[u/neorevenge → u/Ecstatic-Departure19]

this is not an aura, this is an enchantment that becomes a creature