Cube Pauper Rules.

#All cards can be played face down as lands, a land played this way counts/taps/targets as any land type when played as such.

#All cards in library/hands/graveyards, may count as any land type when performing: Searching/Returning/Targeting.

#Searching the library for a card only applies to the top 10 card of the active draw-pile of the library on the play-table.

#Shuffeling into the library only applies to the active draw-pile of the library on the play-table.

#Putting cards at the bottom of the library removes them from the active game.

#Cards that target: Planeswalker, counts as any target. Targeting players this way cannot: Destroy/Exile/Return target player.

#When players hold only 1 card in hand, that player may: tap 2 mana, draw a card, then exile a card. (Sorcery speed).

#When a play controls 2 or more lands, that player may: Exile target land that player controls, then return another target land that player controls to their hand. (Sorcery speed).