Your search for "roofstalker wight 121" revealed the following:
Roofstalker Wight (CLU) from Ravnica: Clue Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Puddnhead Card Text:1U: Roofstalker Wight gains flying until end of turn.
Roofstalker Wight (Foil) (RAV) from Ravnica: City of Guilds, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Puddnhead Card Text:1U: Roofstalker Wight gains flying until end of turn.
Roofstalker Wight (RAV) from Ravnica: City of Guilds, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Puddnhead Card Text:1U: Roofstalker Wight gains flying until end of turn.