Here is the list of silver rare cards which you could use the correct combination.
Indian Cobra + Ocean Power + Saturn Saw
Polar Bear + Vital Match (Evil bear 125 bronze V6) + Aligned Planets
Hammerhead Shark + Darkness Power (Evil Narwhal 521) + Approaching Sun
African Elephant + Unchained Power (For V4) or Ocean Power + Aligned Planets
All the combination above has been tested and it all do the trick to win! Please try! If you do not have the requirements, use your own combination!