Secret Fight Club (SFC) is the highest rank in Arena, enter by leveling your Arena rank past rank 15.
Secret Fight Club points are displayed on the SFC Leaderboard - gain points from winning battles, lose points from defeats.
Losing three matches in a row while at 0 points will cause you to drop out of Secret Fight Club and down to 50% of level 15.
Slow ability on your opponent allows them to play a card first but the opponent does not attack until the next turn.
Instead of earning Arena experience players can earn Greater Epic Stones, which are randomly dropped from winning matches.
Players that are inactive for more than 2 weeks will be excluded from SFC matchmaking.
As of November 28, 2018, Players in the top 1000 Ranks for SFC will have a trophy displayed next to their name. The top 10 players get a unique trophy! The score cap for SFC has increased from 2500 to 3500.
A player with a score of 2500+ will begin to face opponents with a % buff based on the player's own SFC score (not their opponent's score).