Imprint — When this artifact enters, you may exile a nonartifact, nonland card from your hand.
: Add one mana of any of the exiled card's colors.

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: Add .
: This land becomes a 2/2 creature with all creature types until end of turn. It's still a land.

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Haste
Whenever this creature attacks, defending player reveals the top card of their library. If it's a land card, that player puts it into their hand.

When this creature enters, you may search your library for an Equipment card, reveal it, put it into your hand, then shuffle.
, : You may put an Equipment card from your hand onto the battlefield.

Whenever equipped creature deals combat damage, put two charge counters on Umezawa's Jitte.
Remove a charge counter from Umezawa's Jitte: Choose one —
• Equipped creature gets +2/+2 until end of turn.
• Target creature gets -1/-1 until end of turn.
• You gain 2 life.
Equip

Landfall — Whenever a land you control enters, add one mana of any color.

Destroy target nonland permanent and all other permanents with the same name as that permanent.

Create a 3/3 green Elephant creature token.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Equipped creature gets +2/+2 and has protection from black and from green.
Whenever equipped creature deals combat damage to a player, that player discards a card and you untap all lands you control.
Equip

Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)
Equipped creature gets +4/+4 and has vigilance and lifelink.
: Return this Equipment to its owner's hand.
Equip

Whenever this creature deals damage to a creature, put a +1/+1 counter on this creature.
: Regenerate this creature.
: This creature becomes the color of your choice until end of turn.

Trample
Whenever this creature enters or attacks, you may search your library for up to two land cards, put them onto the battlefield tapped, then shuffle.

Each player sacrifices all permanents they control that are one or more colors.

Flying, lifelink
Pay 7 life: Draw seven cards.

Protection from everything
If Progenitus would be put into a graveyard from anywhere, reveal Progenitus and shuffle it into its owner's library instead.