When used as a targeted dispel, this spell can end two spells affecting the target instead of just one. If the targeted dispel successfully dispels at least one spell, you heal 1d4 points of damage for every spell level of the dispelled spell. If you dispel two spells, this healing applies only to the highest-level spell dispelled. If you use this spell to counterspell, roll your dispel check twice and take the higher result.
In the main book, that's all we get in the spells section, BUT in the magic item section we get:
This +3 cold iron longsword becomes a +5 holy defiant cold iron longsword in the hands of a paladin or a lawful good mythic creature. If the creature wielding this weapon is a paladin with mythic tiers, she can also grant the weapon the brilliant energy special ability on command. Dismissing the brilliant energy ability is a free action.
When wielded by a paladin or a lawful good mythic creature, this weapon provides spell resistance equal to 5 + the character's paladin class level (if any) + the character's mythic tier (if any) to the wielder and anyone within 10 feet of her.
Is it intentional that the greater version of dispel was not included in the spell list, along with several other greater spells, or should this be exclusive to the Sacred Avenger thing? Would you allow the use of Mythic Greater Dispel Magic?