The Brothers' War Retro Artifacts

Goblin Charbelcher | Artifact | | {3}, {T}: Reveal cards from the top of your library until you reveal a land card. Goblin Charbelcher deals damage equal to the number of nonland cards revealed this way to any target. If the revealed land card was a Mountain, Goblin Charbelcher deals double that damage instead. Put the revealed cards on the bottom of your library in any order. | Jesper Ejsing

Lodestone Golem | Artifact Creature | Golem | Nonartifact spells cost {1} more to cast. | Chris Rahn

Quicksilver Amulet | Artifact | | {4}, {T}: You may put a creature card from your hand onto the battlefield. | Brad Rigney

Unwinding Clock | Artifact | | Untap all artifacts you control during each other player's untap step. | Mike Bierek

Well of Lost Dreams | Artifact | | Whenever you gain life, you may pay {X}, where X is less than or equal to the amount of life you gained. If you do, draw X cards. | Jeff Miracola