Any NPC merchant that sells potions of 'Restoration'

[Lockonnow]

there is a reason we RP you cant have anything on this server couse it is only fit for the RP

[Sun Wukong]

No actually it is not!

Deathward at lower caster level will trigger dispels, if the area has them. Thus depending on what you run into, you might end up drinking one potion of Deathward after another, before meeting the caster mob you need the Deathward against. Mobs are largely spawned randomly. You could try to save the Deathward potions until such encounters, but then it becomes an issue of who detects who first, and you might not be able to drink your potion in time.

With 'Elixir of Restoration' - I can just drink one when I get hit by level drain.