Rewards given for completing Merit Stamp Cards.
Level 1 (Need all to unlock Level 2)
Jumping Jack (1 Card) - Allows you to jump by pressing (Circle) while running. Not very useful, but a whole lot of fun!
Note - Extremely helpful in places where you are forced to walk.
Jack Be Nimble (1 Card) -Allows you to run a little faster on the hills and plains of the wide world
Little Jack Horner (1 Card) - Occasionally makes your foraging efforts more fruitful
Jack-in-the-Box (2 Cards) - Makes it easier for you to sneak up on enemies from behind.
Jackpot (2 Cards) - Causes additional restorative glims to appear during battle.
Jolly Jack-Tar (1 Card) - Hastens your ship's progress across the seven seas.
Level 2 (Need all to unlock level 3)
Cheapjack (3 Cards) - Allows you to by items in shops at a slightly lower price.
Note - 10% discount
Crackerjack (3 Cards) - Increases the amount of experience gained through taking part in battle.
Note - 10% EXP increase (rounded down)
Jack-o'-Lantern (3 Cards) - Helps you strike fear into your enemies, causing them to drop more items.
Jackpot II (3 Cards) - Allows you to collect any glims that remain at the end of a battle automatically.
Note - Does not include Gold Glims
Jack-at-a-Pinch (3 Cards) - Lowers the cost of continuing your game following a defeat on the battlefield.
Note - Changes it from 10% of your guilders to 5%. (Just save often and this shouldn't be a problem anyway.)
Flapjack (2 Cards) - Allows you to give Tengri a speed boost by pressing (Circle) while flying.
Jack of Hearts (4 Cards) - Improves your chances of befriending creatres and making them your familiars.
Note - 20%
Jack-Amend-All (4 Cards) - Enables the recovery of health through walking. The more you explore, the more you restore.
Note - The usefulness of this is questionable.
Crackerjack II (1 Card) - Further increases the amount of experience gained through taking part in battle.
Note - This increase is universal. A familiar does not need to fight in the battle to gain the extra experience. The wording was vague enough to cause me confusion.
Jack-of-all-Trades (5 Card) - Reduces the amount of magical power required to perform spells, tricks, songs, and trick shots.
Note - It is only by about 10%.
Jack-o'-Lantern II (5 Cards) - Allows you to terrify your enemies even more, causing them to drop rare and valuable items.
Note - Not sure of the % change.
Jack the Giant Killer (8 Cards) - Unlock's Oliver's full potential as a wizard and a hero!
Note - Gives Oliver 100 HP and 100 MP.