Bag of Endless Sand

This Bag of Sand holds an apparently limitless amount of sand, refilling everyday at dawn. It has 5 charges and recharges 1d4+1 charges at dawn. 

As an action, the wielder can use 1 charge and target a creature within 20 feet. That creature has to make a Dexterity Saving Throw against a DC of 15. If it fails, it is blinded until the end of its next turn. Alternatively, the wielder can use 2 charges as an action and place five 5 foot squares within 30 feet that have to be connected to each other. This area becomes difficult terrain for 1 hour, then the sand disappears.

If the wielder is in a desert, the Bag of Endless Sand always recharges to full at dawn.

Notes: Debuff, Utility