Except Draco meteor gets stab as well, making it 315...
I do think ice beam should remain a staple on choice scarf and specs, however. On scarf, it provides kyurem the ability to revenge ice weak arcei and not getting walled by lugia. On specs, ice beam acts as both kyurem's sustained move and it provides similar, yet crucially different coverage. Unlike dragon pulse, it hits skarmory, Excadrill, and most importantly, ferrothorn neutral. Like dragon pulse, it is not resisted by much, making it a solid move to just throw out there.