All is Dust’s text states that it destroys all non-devoid colored supports. However that does not mention that it destroys vanguard supports - normally vanguard supports are not targeted by support destruction unless specifically mentioned in the card’s text.
Is this intended behavior or a simple bug?
It should not destroy vanguards.
It seems like an expected behaviour for a card that don’t explicitely says that it can apply to vanguards.
If the “support” word includes several subtypes, the “vanguard support” has never been treated as a subtype but as a category of it’s own.
Thank you for the feedback!
This issue is now under investigation.