Weiß Schwarz was originally a Japanese Anime based collectible card game which has now slowly started being released in English in UK and USA. The game was created by Bushiroad.
Finally Weiß Schwarz is now in English :D
With the release of 3 trial decks and booster packs.
The 3 currently available in English, with more to come are:
1) Sword Art Online
2) Fate Zero
3) Puella Magi Madoka Magica