Larry: Light Disintegration Blast!
Link: Discover that you can cast Fire!
Luigi: Look behind you.
Larry fires off his signature attack, Light Disintegration Blast, at the Pianta fellow! The boss takes FIVE DAMAGE and is stunned, thus can't move this round!
Luigi looks behind him, but only sees a stretch of cave and rails that will conveniently end when the boss battle is finished.
Link learns Fire I
, filling up his maximum of two traditional magic slots!
5 [0/160]Luigi Points: <3<3<3<3<3<3< (13/13)Mustache Points: <3<3<3<3<3<3< (13/13)Items: Fancy Golden Key
, Miracle Herb
, Red Mushroom
, Hoohoo HammerTraits: Mario Brother
, Mustache Power
, Value of Friendship
, Double JumpAbilities: Inner Flame
, Like a Blur
5 [0/160]Health Points: <3<3<3<3<3 (10/10)Necromancer Points: <3<3 (4/6)Minions:
1/1Items: Skeletal Spear
, Heart ContainerTraits: UndeadAbilities: Undead-o-mancy
, Light Disintegration Blast
, Necromantic Drain
, My HP, Mine
4 [0/80]Hearts: <3<3<3<3<3 (10/10)Magic Points: <3<3<3<3 (8/8)Items: Deku Shield
, Wooden Sword
, Bomb Bag (1 bomb)
, Empty Bottle
, Small BoomerangTraits: Item Finder
, The Fair Folk
, Second Boss Completed
, Power in Your WristAbilities: Heal I [1/2], Fire I [2/2]
Limit Breaks: Blade Finale
EDIT: I retconned Link into only having two slots instead of five. He can get more with an upgrade.