Colorless Artifact Aggro-Midrange

A colorless artifact deck built entirely from basic lands, commons, and uncommons, so it requires zero rare or mythic wildcards — the only wildcards you would ever spend are common/uncommon ones, which the rules treat as freely available.

• Cheap artifacts (Candy Trail, Compass Gnome, Glimmerlight, Gold Pan) come down early, chip in for damage, and turn on Patchwork Banner by naming Golem/Construct so your creatures get +1/+1.
• Cartographer's Companion and Compass Gnome make Map tokens that ramp you into Juggernaut and Meteor Golem without needing any rare mana rocks.
• Sanitation Automaton filters your draws so you find your payoffs, and Candy Trail's Food/Clue tokens can be cracked for lifegain or cards when you flood.
• Meteor Golem is your catch-all answer: it destroys any nonland permanent, which colorless decks otherwise struggle to deal with.

Keep any hand with two to three lands plus at least one cheap artifact (Candy Trail, Compass Gnome, Glimmerlight). Keep hands that curve Patchwork Banner into Juggernaut. Mulligan hands with only expensive cards (Juggernaut, Meteor Golem) and no early plays, and mulligan one-land hands.

Early: deploy one-mana and two-mana artifacts, use Sanitation Automaton to smooth draws, and hold the board. Mid: resolve Patchwork Banner, suit up an attacker with Gold Pan or Glimmerlight, and start attacking with Juggernaut. Late: use Meteor Golem to remove the biggest threat and win with equipped attackers plus Rogue's Passage making a creature unblockable.

Colorless has almost no instant-speed interaction, so fast aggro and resolved planeswalkers are hard to answer. Mass artifact removal and board sweepers punish your committed board, and without rare payoffs your top-end is weaker than typical Standard decks.