You may play two additional lands on each of your turns.
1 /
2
{5}
Blinkmoth Urn
Artifact
At the beginning of each player's precombat main phase, if Blinkmoth Urn is untapped, that player adds {C} for each artifact they control.
{1}{R}{G}
Burning-Tree Shaman
Creature - Centaur Shaman
Whenever a player activates an ability that isn't a mana ability, Burning-Tree Shaman deals 1 damage to that player.
3 /
4
{2}{R}
Citadel of Pain
Enchantment
At the beginning of each player's end step, Citadel of Pain deals X damage to that player, where X is the number of untapped lands they control.
{G}
Collective Voyage
Sorcery
Join forces -- Starting with you, each player may pay any amount of mana. Each player searches their library for up to X basic land cards, where X is the total amount of mana paid this way, puts them onto the battlefield tapped, then shuffles.
{3}{G}{G}
Dictate of Karametra
Enchantment
Flash
Whenever a player taps a land for mana, that player adds one mana of any type that land produced.
{1}{G}{G}
Dosan the Falling Leaf
Legendary Creature - Human Monk
Players can cast spells only during their own turns.
2 /
2
{G}
Eladamri's Vineyard
Enchantment
At the beginning of each player's precombat main phase, that player adds {G}{G}.
{2}{R}
Glorious End
Instant
End the turn. (Exile all spells and abilities from the stack, including this card. The player whose turn it is discards down to their maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)
At the beginning of your next end step, you lose the game.
{1}{R}
Harsh Mentor
Creature - Human Cleric
Whenever an opponent activates an ability of an artifact, creature, or land on the battlefield, if it isn't a mana ability, Harsh Mentor deals 2 damage to that player.
2 /
2
{2}{G}
Heartbeat of Spring
Enchantment
Whenever a player taps a land for mana, that player adds one mana of any type that land produced.
{G}
Helix Pinnacle
Enchantment
Shroud (This enchantment can't be the target of spells or abilities.)
{X}: Put X tower counters on Helix Pinnacle.
At the beginning of your upkeep, if there are 100 or more tower counters on Helix Pinnacle, you win the game.
{1}{R}
Immolation Shaman
Creature - Viashino Shaman
Whenever an opponent activates an ability of an artifact, creature, or land that isn't a mana ability, Immolation Shaman deals 1 damage to that player.
{3}{R}{R}: Immolation Shaman gets +3/+3 and gains menace until end of turn.
1 /
3
{3}{G}
Keeper of Progenitus
Creature - Elf Druid
Whenever a player taps a Mountain, Forest, or Plains for mana, that player adds one mana of any type that land produced.
1 /
3
{G}
Magus of the Vineyard
Creature - Human Wizard
At the beginning of each player's precombat main phase, that player adds {G}{G}.
1 /
1
{1}{R}{R}
Mana Cache
Enchantment
At the beginning of each player's end step, put a charge counter on Mana Cache for each untapped land that player controls.
Remove a charge counter from Mana Cache: Add {C}. Any player may activate this ability but only during their turn before the end step.
{2}{R}
Mana Flare
Enchantment
Whenever a player taps a land for mana, that player adds one mana of any type that land produced.
{3}
Mana Web
Artifact
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.
{3}{R}
Manabarbs
Enchantment
Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.
{6}
Mycosynth Lattice
Artifact
All permanents are artifacts in addition to their other types.
All cards that aren't on the battlefield, spells, and permanents are colorless.
Players may spend mana as though it were mana of any color.
{1}{R}{G}
Overabundance
Enchantment
Whenever a player taps a land for mana, that player adds one mana of any type that land produced, and Overabundance deals 1 damage to the player.
{R}{R}
Power Surge
Enchantment
At the beginning of each player's upkeep, Power Surge deals X damage to that player, where X is the number of untapped lands they controlled at the beginning of this turn.
{2}{R}
Price of Glory
Enchantment
Whenever a player taps a land for mana, if it's not that player's turn, destroy that land.
{2}{G}
Rites of Flourishing
Enchantment
At the beginning of each player's draw step, that player draws an additional card.
Each player may play an additional land on each of their turns.
{1}{G}{G}
Shizuko, Caller of Autumn
Legendary Creature - Snake Shaman
At the beginning of each player's upkeep, that player adds {G}{G}{G}. Until end of turn, they don't lose this mana as steps and phases end.
2 /
3
{3}{G}
Squallmonger
Creature - Monger
{2}: Squallmonger deals 1 damage to each creature with flying and each player. Any player may activate this ability.
3 /
3
{4}
Sword of the Paruns
Artifact - Equipment
As long as equipped creature is tapped, tapped creatures you control get +2/+0.
As long as equipped creature is untapped, untapped creatures you control get +0/+2.
{3}: You may tap or untap equipped creature.
Equip {3}
{3}
Tangleroot
Artifact
Whenever a player casts a creature spell, that player adds {G}.
{3}{B}
Triskaidekaphobia
Enchantment
At the beginning of your upkeep, choose one --
• Each player with exactly 13 life loses the game, then each player gains 1 life.
• Each player with exactly 13 life loses the game, then each player loses 1 life.
{3}
Umbral Mantle
Artifact - Equipment
Equipped creature has "{3}, {Q}: This creature gets +2/+2 until end of turn." ({Q} is the untap symbol.)
Equip {0}
{3}{G}
Vernal Bloom
Enchantment
Whenever a Forest is tapped for mana, its controller adds an additional {G}.
{3}
Victory Chimes
Artifact
Untap Victory Chimes during each other player's untap step.
{T}: A player of your choice adds {C}.
{3}{R}
War's Toll
Enchantment
Whenever an opponent taps a land for mana, tap all lands that player controls.
If a creature an opponent controls attacks, all creatures that opponent controls attack if able.
{5}{B}
Wound Reflection
Enchantment
At the beginning of each end step, each opponent loses life equal to the life they lost this turn. (Damage causes loss of life.)
{3}{R}{G}
Zhur-Taa Ancient
Creature - Beast
Whenever a player taps a land for mana, that player adds one mana of any type that land produced.