Level 3
Enhanced Flames.
(1/ encounter) Add + WIL to a spell that deals damage.
Hearts Fuel.
+5 max HP. Upgrade your Hit Dice to d10s.
Level 7
Fan the Flames.
(1/ day) for the next 1 minute. Increment Dice for spells that deal damage.
Level 11
Flaming Target.
(1/ day) 1 action. Make target vulnerable to selected damage type for next attack.
Level 15
Twinned Flame.
(1/ day) 1 action. Copy the last damage dealing spell and select new targets for the copy.