Game-wise, Crush Card Virus will be able to carry out its ability if you sacrifice (or, in Yu-Gi-Oh terminology, TRIBUTE) 1 of your DARK monsters that has 1000 Attack or less
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Deck building considerations must account for energy distribution, synergy with other cards, and prevalent counter strategies to mitigate the risk of giving away too many Prize cards too quickly
At the beginning of that turn's upkeep, cumulative upkeep adds an age counter and then says, "Hey, pay 1." (This assumes your abilities can speakmine can.) Echo sits mostly quietly, though it occasionally mumbles about the old days

Trainer (Rockets Secret Machine) Common 80/82: Rainbow Energy Energy Special Rare 81/82: Full Heal Energy Energy Special Uncommon 82/82: Potion Energy Energy Special Uncommon 83/82: Dark Raichu Lightning Rare Secret Common: 49/82: Abra Psychic Common 50/82: Charmander Fire Common 51/82: Dark Raticate Colorless Common 52/82: Diglett Fighting Common 53/82: Dratini Colorless Common 54/82: Drowzee Psychic Common 55/82: Eevee Colorless Common 56/82: Ekans Grass Common 57/82: Grimer Grass Common 58/82: Koffing Grass Common 59/82: Machop Fighting Common 60/82: Magnemite Lightning Common 61/82: Mankey Fighting Common 62/82: Meowth Colorless Common 63/82: Oddish Grass Common 64/82: Ponyta Fire Common 65/82: Psyduck Water Common 66/82: Rattata Colorless Common 67/82: Slowpoke Psychic Common 68/82: Squirtle Water Common 69/82: Voltorb Lightning Common 70/82: Zubat Grass Common 78/82: Goop Gas Attack Trainer Common 79/82: Sleep
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