Lots of mana during your upkeep

Whenever a land an opponent controls is tapped for mana, tap all lands that player controls that could produce any type of mana that land could produce.

Imprint — , : You may exile an instant or sorcery card with mana value X from your hand. At the beginning of your upkeep, you may copy a card exiled with this artifact. If you do, you may cast the copy without paying its mana cost.

You may cast spells as though they had flash.

Add for each tapped land your opponents control.

Each land is a Swamp in addition to its other land types.