>>5908464A proper Cassandra Cain would be great.
As for Manta, while the Mattel figures were alright for their time, they can definitely use an update. Admittedly I did end up repainting mine so the helmet's colors would look sharper and his eyes a little more fierce. I also modded his trident so it resembles his traditional handheld one while turning the rest of it into a makeshift harpoon (the harpoon not pictured though).