Deck builder and simulator of Weiss Schwarz. You can make your decks and test them.

List of Decks which win big tournaments. You can simulate those decks.
Neo Standard - Local - 21/02/2016 - Saint Etienne (France) 2nd place Player : Adrian Peyrat
386.82 174 testplaying 【4 - 1】 17 participants
Hey guys! This is Cameron Becker with my Top 8 deck profile for Nisekoi (R/B/G). The deck profile can also be found on my YouTube channel: Here are the match-ups that I had: Round 1: Sword Art Online (W) Round 2: Nisekoi (R/B/G) mirror (W) Round 3: Attack on Titan (Corps) (W) Round 4: Attack on Titan (Mono-Blue Titans) (L) Round 5: Nisekoi (R/B) (W) Round 6: Kantai Collection (W) Round 7: Kantai Collection (W) Top 8: Idolmaster Cinderella Girls (Mono-Blue) (L) I know Springfest 2016 was quite a while ago, but I figured I would post this anyway. I'm always working on different deck profiles for Nisekoi, so any comments, questions, or recommendations are welcome!
31 testplaying 【6-2】 ~160? participants
Neo Standard - Local - 7/02/2016 - Lyon (France) 3rd place Player : Yohan R.
266.23 154 testplaying 【0-0】 13 participants
The deck used in Worlds in Japan to take 5th Place.
691 testplaying 【2-1】 10 participants
Winner Decks
431.70 19 testplaying
Winner Decks
554.33 35 testplaying

List of Waifu Decks. You can refer them to bulid your waifu decks.

List of Decks are commented. Please comment each other to improve decks.

Pick Up Decks at random!
217.26 41 testplaying
383.27 15 testplaying
Try to get all the pieces for Seira at lv1 but you have Ginka to fall back on for power if you fwubbed
265.67 26 testplaying
This is the ultimate 4 color build. It is one of the hardest to play but it is the most rewarding when you pop off.
276.28 10 testplaying
17 testplaying
466.56 45 testplaying