Noctem
Explorer
You are correct, upon rereading the description. I have changed my post to reflect this, and quoted the text in the book.
No he's not correct. The target of the spell is the druid, not the wildshape form. The druid, which is the target of the spell, is never reduced to 0 hit points. Just like if you had temp HP, you would not be turned to dust just because you went to 0 temp HP. He's completely wrong.
I've shown that the RAW of the Making an Attack section of the PHB clearly explains the steps for all attacks in the game. There's 3 steps for ALL attacks in 5e. You cannot force the game to mix steps or change the step order just because you don't understand how the rules of the game works like maxperson is doing. The effect of turning a target to dust can only happen in the last step of the Making an Attack section. That's after targeting, making the attack, rolling dice, dealing damage, resolving damage, etc..
The only way to change that order is if the game element specifically states that it does. Wildshape specifically says that you revert back to druid form during the resolution of damage, if that damage would reduce the wildshape form to 0 hit points AND that you take any remaining damage after reverting. Disintegrate does not specify anything like that for turning stuff to dust and instead would be restricted to having the turned to dust effect happen in the 3rd step of Making an Attack. At which point, the druid has already reverted back to druid form. The check is then made vs the current HP pool and not against the wildshape hp pool like if it was a seperate target of the spell. The druid is never turned to ash unless the spell deals enough damage to cause the wildshape to revert and the druid to be reduced to 0 hit points.
This is both RAW and RAI. Present the rules text for your arguments, put up or shut up
