User blog comment:Skeith9/Heroic Spirits Speculation/@comment-50.159.54.248-20140708210731/@comment-10118178-20140709170640

@azure

Nasu confirmed that Merlin was an user of True Magic, so of course he would be powerful as hell. And he wouldn't even use that much of mana because Magic doesn't require a lot. True Magic breaks even A-rank Magic Resistance, the only thing that can defend from True Magic is Avalon.