If you create a new character, select say regular bard + stormsinger, then swap over to Tiefling Scoundrel, your Iconic will remember that you selected stormsinger in the regular bard setup, and will be of the Stormsinger variety, so you can test it out at 15. If you just select Iconic, Tiefling Scoundrel, it does not give you an option for selecting stormsinger. The same thing works for Bladeforged Sacred Fist. I did not test Sun Elf Dark Apostate because I ran out of character slots.
So this could save some people the hassle of a lesser heart of wood, and could open up options for people that already have 3x Paladin, Cleric, and Bard lives, but not their respective Iconics.
I am not certain that the Bladeforged Sacred Fist would be that good if you go Wraps/TWF, since it starts -2 DEX, but you could probably make it work with tomes, or try using a Greatsword instead or something.