Deathward should be castable while casting other spells

[Leucippus]

Deathward should be castable while casting other spells, similar to the way ambidextrous casting works for wizards and warlocks.The change would also compliment the spell's mechanics. Deathward seems to be designed, in both name and function, as a form of death prevention spell, as opposed to a preemptive strike on avoiding damage.Making that change would give the spell a subtle boost that could make it a nice level 80 spell, while not making it overpowering.-Leucippus