You have Gandalf's Sanction but need support.
Look for Birthday Escape or Lórien Revealed.
A high spell count without losing defense. Cycling Lórien Revealed fills the graveyard but does not cast a spell, so it does not trigger Fiery Inscription.
You already have Fiery Inscription.
Consider Birthday Escape if it fills a useful job.
Birthday Escape replaces itself and advances the Ring while triggering Inscription for two damage to each opponent. It also goes to the graveyard for a later Sanction.
The support is missing
Take castable creatures and answers. If the engine never arrives, use the good cards rather than forcing narrow support.