{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.

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

{T}: Each player mills a card.

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

{T}, Sacrifice this artifact: Look at the top card of target player's library. Draw a card at the beginning of the next turn's upkeep.

Metalcraft — {T}: Add one mana of any color. Activate only if you control three or more artifacts.

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.

{T}: Each player exiles the top card of their library face down. {7}, {T}, Sacrifice this artifact: Each player turns face up all cards they own exiled with this artifact, then puts all permanent cards among them onto the battlefield.

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

{T}: Add {C}{C}. This land deals 2 damage to you.

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.

{T}: Add {C}. {T}, Pay 1 life: Add one mana of any color. Activate only if you control an artifact.

Activated abilities of artifacts your opponents control can't be activated. +1: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value. −2: You may reveal an artifact card you own from outside the game or choose a face-up artifact card you own in exile. Put that card into your hand.

Look at the top five cards of your library. You may reveal a colorless card from among them and put it into your hand. Then put the rest on the bottom of your library in any order.

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