To evolve a white card(2 star) to a green card(3 star), you need five pieces of "The Protector Set".

To evolve a green card(3 star) to a blue card(4 star), you need five pieces of "The Conqueror Set".

To evolve a blue max card(4 star +3) to a purple card(5 star), you need one card of a respective Elite Purple BOSS card.

To evolve a purple card(5 star) to an elite purple card(5 star +), you need five pieces of ""Epic Jewelry".

By looking at the E. Path, you can see the evolutionary pathway for that card and items necessary for evolving.

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