Dosan the Falling Leaf

Players can cast spells only during their own turns.

Forest

Azusa, Lost but Seeking

You may play two additional lands on each of your turns.

Collector Ouphe

Activated abilities of artifacts can't be activated.

Hall of Gemstone

At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.

Primal Order

At the beginning of each player's upkeep, Primal Order deals damage to that player equal to the number of nonbasic lands they control.

Winter Orb

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.