Which Superhero does this Villain fight?

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Across
  1. 1. Abomination
  2. 4. Red Skull
  3. 7. Dr. Sivana
  4. 9. Ocean Master
  5. 10. Shredder
  6. 11. Loki
  7. 13. Magneto
  8. 14. Green Goblin
  9. 15. Lex Luthor
  10. 16. Kingpin
  11. 17. Iron Monger
Down
  1. 1. Skeletor
  2. 2. Sinestro
  3. 3. Dr. Doom
  4. 5. Jigsaw
  5. 6. Joker
  6. 8. Rita Repulsa
  7. 12. Sabertooth