Method: CardType#mana_source

Defined in:
lib/manasimu/card.rb

#mana_source ⇒ Object 



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# File 'lib/manasimu/card.rb', line 193

def mana_source
  @mana_source ||= @contents.map { |c| 
      c.color_identity ? c.color_identity : []
    }.flatten.uniq
end