What SP should you get for Sandy?

So I thought maybe healing winds is better, because 300 hp per second is more value than 100 damage to the enemy. Plus with his mythic gear, his super provides great survivability.

But then rude sands also seems handy because it covers such a large area, and most people subconsciously go for safety when they realize they're taking damage. This would make it good for area denial but also a finisher if an enemy on low hp gets juuuust out of your reach.

What do you guys think? SP 1 or SP 2?