Target player reveals their hand. You choose a nonland card from it with mana value 3 or less. That player discards that card.

{T}, Discard a card: Create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.") {4}, {T}, Sacrifice this artifact: Return target creature card from your graveyard to your hand.

{T}: Add {C}. {1}{U}, {T}: Put target artifact card from your graveyard on top of your library.

Whenever this land becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color.

At the beginning of the end step, if you control no artifacts, sacrifice this land. {T}: Add one mana of any color.

At the beginning of your upkeep, if you control three or more artifacts, you gain 1 life. {T}: Add {C}. {4}, {T}, Sacrifice Inventors' Fair: Search your library for an artifact card, reveal it, put it into your hand, then shuffle. Activate only if you control three or more artifacts.

This land enters tapped. {T}: Add {B}, {G}, or {U}.

{T}: Add {C}. ({C} represents colorless mana.) {2}{C}, {T}: Draw a card. Activate only if you have no cards in hand.

{T}: Target player mills a card. (They put the top card of their library into their graveyard.) {5}, {T}, Sacrifice this artifact: Return target card from your graveyard to your hand.

Players play with the top card of their libraries revealed. {T}, Sacrifice this artifact: Target player shuffles.

Creature cards in graveyards and libraries can't enter the battlefield. Players can't cast spells from graveyards or libraries.

As this artifact enters, choose a card name. Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Creatures with power greater than the number of cards in your hand can't attack.

Sacrifice this artifact: Regenerate target artifact.