Your search for "Vampire Champion 198" revealed the following:
Vampire Champion (RIX) from Rivals of Ixalan, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Craig J Spearing Card Text:Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Vampire Champion - RIX Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Craig J Spearing Card Text:Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)