Mono blue-ish that turned to work well, Darkness is a really messed up card and the Eris restander is very good.
Thanks to the people who helped me finish the deck for the tournament.
R1 win vs RB Illya (Another Me)
R2 win vs BY SAO Switch
R3 win vs RB Nisekoi
R4 win vs Mirror match
R5 win vs RYB Nisekoi
R6 Loss vs Mono Y Fate (Shirou UBW)
R7 win vs AOT YR Corps
QF win vs BG SAO Last Shot
SF win vs TLR YG Meta
Finals win vs RBG LL