Some Weiss Schwarz terminology in Japanese

相手 (aite) - opponent
選ぶ (erabu) - to select, choose
山札 (yamafuda) - the deck/library
手札 (tefuda) - the hand
思い出 (omoide) - memory
舞台 (butai) - stage
前列 (zenretsu) - front row/center stage
後列 (kouretsu) - back row/back stage
戻す (modosu) - to return, revert
(number)枚 (mai) - (number) of cards (In this case, this is a counter used for flat objects like paper or cards.)
見せる (miseru) - to show