Rankings Level For Players:
God (Highest)
Monarch
Administrator
King
Player
Ranking levels for skills/monsters/cards:
Rank God (Black Card)
Rank Monarch (Red Card)
Rank SSS (Gold)
Rank SS (Silver)
Rank S (Bronze)
Rank A (A-F are white so it's a gamble which you get)
Rank B
Rank C
Rank D
Rank F