Levels too deep?

Its telling me on the command promp that the type commands levels under the case statement are too deep. Whats that mean?

class Pokemon attr_reader :name, :type, :attacks, :hp

def initialize(name, type, attacks, hp) @name = name @type = type @attacks = {} end

def type case type

when "electric" then puts "#{name} is a electric pokemon. Electric pokemon are weak to Ground and grass type pokemon. Electric attacks are super effective to water and flying types" when "water" then puts " #{name} is a water type pokemon. Water types are weak to electric and grass type pokemon. All water types attacks are super effective to fire and ground types." when "grass" then puts "#{name} is a grass type pokemon. Grass type pokemon are weak to fire and ice attacks. There attacks are super effective against electric and water types." when "fire" then puts "#{name} is a fire type pokemon. Fire types are weak to water and ground types. There attacks are super effective to grass and fighting types." when "fighting" then puts "#{name} is a fighting pokemon and is weak to psychic. There attacks are super effective against flying types." when "rock" then puts"#{name} is weak to water attacks. Rock type attacks are super effective against fighting types." when "dragon" then puts "#{name} is a dragon type pokemon. Dragon types are weak to ice type attacks. Dragon attacks are super effective against other dragons." end end

end

pikachu = Pokemon.new("pikachu","electric","",90)

pikachu.type