You already have Cruel Administrator but lack support.
Prioritize Fire Nation Cadets or Lightning Strike.
Attackers and ways to spend combat mana. Firebending mana vanishes after combat; it cannot cast a normal second-main-phase creature.
You have Fire Nation Cadets and can use the interaction.
Consider Combustion Technique for the next useful piece.
With a Lesson already in the graveyard, Cadets attacks and supplies two red mana. Use other mana for the spell’s colored requirements if necessary.
The support is missing
Keep broadly useful creatures and answers; if the special reward is missing, build a complete deck before chasing it.