I gather there's no damage changes for sandstorm? If so - then this ability goes straight into the replace bin, same as pre-rework. The 500 damage/second simply wasn't enough to do anything substantial in the current state of warframe. The augment is hella jank too. It adds the chance to proc from modded melee status pool, but nothing else. Maybe make it so certain melee damage mods would carry over into sandstorm as well? Or at least add maximum health -> damage scaling that is being added to the new 4?