hmm..I would Любовь to have Envy-kun's ability to Shape Shift into different people..or maybe The Sennan/Millennium Rod's ability to control others minds heh.
Though I am not programmed to desire еще power... initiating Поиск anyway
---Result--- Power: The ability to combine with Mini-cons, resulting in a severe increase of firepower Anime (Japanese Name): Chō Robot Seimeitai Transformers: Micron Densetsu Anime (English Name): Трансформеры Armada
Mermaid Melody Pure Mikeru. Let me see: 1. Get Black Beauty Sisters 'revived'. 2. Absorb someone или something and obtain their power. 3. Get a dimension and a замок with flying рыба and DNA-strands. 4. Sing. 5. Play instrument that hypnothises people. 6. Summon weapon from instrument. 7. Appear from a ball of white light. 8. Convince others to give all hope away. 9. Withstand songs of Mermaid Princesses and other beings. 10. Fly 11. Take one's memories away.
Downs about that: 1. Lose control. 2. Can't sustain very well in other dimension. 3. Can be controlled by messenger. 4. Can be betrayed by servants. 5. Needs some weird medicine thingie. 6. Lonely. 7. Emotionally able to lose control.