Ghostmaker
Ghoul
They all look good, though I think we need a VanHel's of some sort to make our Pirates as speedy as they need to be.
Also, I would scratch either Gale or Eerie Mist as both of these are kinda similar. That way we also have room for one more.
I was also thinking that perhaps divide the Lore in two. The first three spells are basic ones that all units can sing, and the strongest three must be sung by either Special or Rare units. Hopefully that prevents the spamming of the really powerful spells.
Also, I would scratch either Gale or Eerie Mist as both of these are kinda similar. That way we also have room for one more.
I was also thinking that perhaps divide the Lore in two. The first three spells are basic ones that all units can sing, and the strongest three must be sung by either Special or Rare units. Hopefully that prevents the spamming of the really powerful spells.