A thunderbird in a high-fantasy world, richly detailed environment with magical elements, vibrantly glowing runes and auras that dance across its massive wings. As it spreads them wide, the air around it crackles with energy, summoning dark clouds from the horizon to collide above in an epic storm of lightning and rain. The beast's power is palpable, its muscles rippling beneath enchanted feathers that shimmer like gold under the torrential downpour. Despite the chaos it creates, there's a sense of natural beauty to this fantastical scene; an ominous yet majestic presence that fills onlookers with both fear and awe.