So, what percentage based damage does this spell deal? Does it matter whether the spell's charged or uncharged? I Black Flame Tornado does at least 13.5% percentage based damage when fully charged.

Dreams wreathed in black flame
Premonition , temptation
the Greater Will shuns

Miranda's bane.

I don't get why people like this spell so much. I have a pure faith build running and compared to Lightning Spear and Frenzied Burst this thing falls by the wayside. I guess the DOT would be great in a boss battle who has a ton of health but on strong enemies my lvl range its faster and more mana efficient to use other spells.

Does godfrey icon improve the damage over time?

Is the DoT on this spell improved with the Old Lords Talisman?

I keep coming back to this incant on my faith builds.

Yes the projectile arc is slightly awkward and it is (mostly) a single target spell, but:
* Fire damage is generally effective in this game
* It's chargeable
* The percentile damage is great against bosses

This is a great choice when a boss is mobile (Godfrey) or hard to reach with weapons (ancient dragon, astel), just spam uncharged casts and watch the HP drop.

This spell have range increased with Arrow's Reach Talisman

I'm one shooting people as high as 1800 hp, yuppie, I love it. There's need to be dozens of attacks that can potentially reach one shooting range (1800hp) 'cause it makes pvp a lot more interesting, and fun. By the way, it's not fun when you need to hit someone an endless (healing potions, healing incantation, etc) amount of times before they are vanquished, especially in invasions. In invasions, you MUST BE ABLE TO ONE SHOOT ANYONE, otherwise you will most likely get 3v1...

Free aiming this and treating it like a smaller Giant's flame take thee is the way to use it in pvp. The explosion that happens when this is fully charged is bigger than you'd expect to the point where you can reliably hit fully charged shots by aiming at the ground next to the person instead of at the person. Also like other status effects, the explosion can still apply the DoT even if the person rolls the initial damage. Sure that's only like 50-60 damage but that's free damage.