#5: Dredge Stuff: Cost: $30, Current Value: $41 The Dredge-centric Restless in Peace Secret Lair drop featuring Golgari Thug, Life from the Loam, and Bloodghast comes in slightly positive in value, thanks mostly to Life from the Loam and Bloodghast both being above $15

Mime) #39 - Ditto (Pikachu) #40 - Ditto (Squirtle) #41 - Dragonair (delta species) #42 - Dragonair (delta species) #43 - Golbat #44 - Hariyama #45 - Illumise #46 - Kakuna #47 - Kirlia #48 - Magneton #49 - Metang (delta species) #50 - Persian #51 - Pupitar (delta species) #52 - Rapidash #53 - Shelgon (delta species) #54 - Shelgon (delta species) #55 - Skarmory #56 - Volbeat #57 - Bagon (delta species) #58 - Bagon (delta species) #59 - Beldum (delta species) #60 - Cubone #61 - Ditto (Charmander) #62 - Ditto (Geodude) #63 - Ditto (Pikachu) #64 - Ditto (Squirtle) #65 - Dratini (delta species) #66 - Dratini (delta species) #67 - Drowzee #68 - Eevee (delta species) #69 - Eevee #70 - Holon's Magnemite #71 - Holon's Voltorb #72 - Koffing #73 - Larvitar (delta species) #74 - Magnemite #75 - Makuhita #76 - Marill #77 - Meowth #78 - Ponyta #79 - Poochyena #80 - Porygon #81 - Ralts #82 - Sandshrew #83 - Slowpoke #84 - Staryu #85 - Staryu #86 - Taillow #87 - Weedle #88 - Zubat #89 - Dual Ball #90 - Great Ball #91 - Holon Farmer #92 - Holon Lass #93 - Holon Mentor #94 - Holon Research Tower #95 - Holon Researcher #96 - Holon Ruins #97 - Holon Scientist #98 - Holon Transceiver #99 - Master Ball #100 - Super Scoop Up #101 - Potion #102 - Switch #103 - Darkness Energy #104 - Holon Energy FF #105 - Holon Energy GL #106 - Holon Energy WP #107 - Metal Energy #108 - Flareon ex #109 - Jolteon ex #110 - Vaporeon ex #111 - Groudon * #112 - Kyogre * #113 - Metagross * #114 - Azumarill

Your Pokemon Cards can pick up surface scratches, edge indentations, bends and dents, sun damage and plenty of other things if you leave your cards just laying around
Continuing with the example from above, if players need to rely on Single Strike Energy for their deck to work, the Urn of Vitality from Battle Styles allows players to retrieve Single Strike Energy from their discard pile