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|Born||June 11, 1969|
|Professional wrestling career|
|Ring name(s)||Shadow WX|
|Billed height||1.80 m (5 ft 11 in)|
|Billed weight||115 kg (254 lb)|
|Debut||November 12, 1995|
Satoru Shiga (志賀 悟 Shiga Satoru) is a professional wrestler best known for his time in Big Japan Pro Wrestling under the ring name Shadow WX. He debuted in 1995 in IWA Japan and moved to Big Japan in 1996, where he became a protege of Mr. Pogo and won the BJW Deathmatch Heavyweight Championship four times. He most recently wrestled at BJW Deathmatch New Generation Revival 4 on October 3, 2013, losing a Fluorescent Boards, Lemon and Salt Death Match to his longtime rival, The W*inger (formerly Shadow Winger).
On November 9, 2019, Shiga announced he was coming out of retirement, forming a new promotion operating out of Tokyo, Japan. Major Leaguers Wrestling (MLW)  will hold their first events on December 13 & 15 2019.
Championships and accomplishments
- "BJW Death Match Heavyweight Title". www.wrestling-titles.com.
- Shadow WX's match history, from WrestlingData.com
- "６年ぶりに現役復帰した不屈のプロレスラー・シャドウWXがたった一人で立ち上げた新団体『メジャー・リーガーズ・レスリング』" (in Japanese). Retrieved 2019-12-04.