I found that in e12n, there are also maleficium and obliterarion. I think the translation is wrong. Maleficium is raid-wide AoE, and obliteration is adds' first straight-line AoE.
But in e12s, only obliteration is used as raid-wide AoE and straight-line AoE. I think we should change raid-wide AoE's name from obliteration to maleficium. In J client, e12s, 'マレフィキウム(maleficium)' is used as raid-wide AoE too.