The emote "─=≡Σᕕ(ꗞಎꗞ)ᕗ" is a representation of a person flexing their muscles and expressing determination or confidence. It can be interpreted as a declaration of strength or readiness for a challenge. The emote "I will be the best athlete" is not a commonly used emote and may vary in meaning depending on context. However, it generally expresses a strong desire to excel in athletic pursuits and become the best in one's field.