No. Just no. That's way too powerful in comparison to the other classes. Now if the hunters and Titans has access to an exclusive elemental primary, then I'm all for it. But just warlocks having not only Susanoo that can change its element depending on your subclass, but a primary as well?!?! Way too strong. Tlaloc is already easily one of the strongest primary exotics in the game when overflow activates. Topping it off with elemental damage would be broken as hell. Like I said, let them bring out some exclusives similar in function for hunters and Titans first, then we can talk about giving the warlocks another one.