Here's some info to where to look and find Face cards...
Granola:
Location: Granola Mines starting at level 42.
Benefit: +2 HP
Time:
Location: Forest of Youth after level 42.
Benefit: Unknown
Beauty:
Location: Fenshire after level 42.
Benefit: 5% Discount in stores
Lobster:
Location: Discipline Beach around level 43 (43 is required to gain access to the area).
Benefit: Increase Carrying Capacity.
Light:
Location: Grey Mountains after level 42.
Benefit: Unknown
Snail:
Location: Jungles of Miznia at level 52 or later.
Benefit: Unknown
Death:
Location: Ruins of Pheebor at level 52 or later.
Benefit: +2% to Final Win Percentage.
Jester:
Location: Unknown. Level requirement is assumed to be higher than 70.
Benefit: Unknown
Grue:
Location: Unknown. Level requirement is assumed to be higher than 70.
Benefit: Unknown
Granola:
Location: Granola Mines starting at level 42.
Benefit: +2 HP
Time:
Location: Forest of Youth after level 42.
Benefit: Unknown
Beauty:
Location: Fenshire after level 42.
Benefit: 5% Discount in stores
Lobster:
Location: Discipline Beach around level 43 (43 is required to gain access to the area).
Benefit: Increase Carrying Capacity.
Light:
Location: Grey Mountains after level 42.
Benefit: Unknown
Snail:
Location: Jungles of Miznia at level 52 or later.
Benefit: Unknown
Death:
Location: Ruins of Pheebor at level 52 or later.
Benefit: +2% to Final Win Percentage.
Jester:
Location: Unknown. Level requirement is assumed to be higher than 70.
Benefit: Unknown
Grue:
Location: Unknown. Level requirement is assumed to be higher than 70.
Benefit: Unknown