In case you haven't seen it, the Sapphire Dragon Eye event happens on Siege Saturday night. Assuming this event is similar to all of the ones on prodo shards, there is no limit on the number of drops, you just need to hit the minimum damage threshold. The drop is a light blue "dragon eye" stone, and speculation points to it being one of four related items that lead up to the new expansion. I think it makes a Dragon sound when locked down. Because the siege event overlaps the legends one I probably won't make it, but good luck to everyone!