The term 'Heraldic Beast' refers to a mythical creature that is used as a symbol in heraldry. The three solutions for this term are the LION (4 letters), Wyvern (6 letters), and YALE (4 letters). The LION is a large cat-like animal that is known for its strength and courage, and is often used as a symbol of royalty. The Wyvern is a mythical creature with the body of a dragon and the wings of a bird, and is often used as a symbol of protection. The YALE is a mythical beast with the head of a goat, the body of a LION, and the tail of a serpent, and is often used as a symbol of power and wisdom.