How do I formulate a balanced, professional-grade herbal tea blend?

Professional herbalists use a structural framework to design blends that are both highly functional and delicious. This is known as the 'blending triad': 1) The Active Base (70-80% of the blend, targeting the primary goal, e.g., Lemon Balm for relaxation), 2) The Supportive Modifier (15-20%, which supports the base herb and improves flavor, e.g., Chamomile), and 3) The Accent/Catalyst (5-10%, adding a pop of color, intense aroma, or nutrient delivery, e.g., Calendula petals or Ginger root).