Undying Vigor of Dragonlords and divine spell casters

[Silverhawk112]

I know that Undying Vigor of the Dragonlords states that "As part of the casting of this spell, you can sacrifice one sorcerer spell slot of up to 9th level; doing this increases the healing by 1d6 points per level of the sacrificed slot."

Because of the feat Initiate of Tamara, I would be able to take it on my healer (class). The wording states that I can't do the same as a sorcerer can do because I'm not a sorcerer. Does it change because I'm a divine spellcaster or will it not work like that.

Thank you ahead of time for your answers.

[Zanos]

Has to be a sorcerer spell slot, unfortunately. So you can only cast the base spell.

For what it's worth this spell isn't great, healing 1d6 per spell level is kind of bad even by the standards of healing spells.

[Thurbane]

Never noticed this spell before. You could use it to qualify for Touch of Healing as a Sorcerer. Interesting.

[Nifft]

Never noticed this spell before. You could use it to qualify for Touch of Healing as a Sorcerer. Interesting.

Hoard Life (Races of the Dragon) also qualifies you.