Each opponent loses two times X life. You gain life equal to the life lost this way.

Return all land cards from your graveyard to the battlefield tapped.

Repeat the following process X times. Each opponent loses 3 life unless that player sacrifices a nonland permanent of their choice or discards a card.

{T}: Add one mana of any color in your commander's color identity.

{T}: Add one mana of any color in your commander's color identity. Sacrifice this artifact: Draw a card.

You may play lands from your graveyard.

{3}, {T}: Double the amount of each type of unspent mana you have.

{T}: Add one mana of any color that a land an opponent controls could produce.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

{T}: Add {C}{C}.

When this artifact enters, scry 3. Each spell you cast that's exactly three colors has replicate {3}. (When you cast it, copy it for each time you paid its replicate cost. You may choose new targets for the copies. A copy of a permanent spell becomes a token.)

Reach (This creature can block creatures with flying.) You may play lands from your graveyard. If a land entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Flying, vigilance, deathtouch, lifelink When Atraxa enters, reveal the top ten cards of your library. For each card type, you may put a card of that type from among the revealed cards into your hand. Put the rest on the bottom of your library in a random order. (Artifact, battle, creature, enchantment, instant, land, planeswalker, and sorcery are card types.)

Flying, vigilance, deathtouch, lifelink At the beginning of your end step, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Each creature you control gets +1/+0 for each time it has attacked this turn. Landfall — Whenever a land you control enters, if it's your main phase, there's an additional combat phase after this phase. At the beginning of that combat, untap all creatures you control.

Trample If you tap a permanent for mana, it produces three times as much of that mana instead.

When Omnath enters, draw a card. Landfall — Whenever a land you control enters, you gain 4 life if this is the first time this ability has resolved this turn. If it's the second time, add {R}{G}{W}{U}. If it's the third time, Omnath deals 4 damage to each opponent and each planeswalker you don't control.

Landfall — Whenever a land you control enters, create a 5/5 red and green Elemental creature token. Whenever Omnath or another Elemental you control dies, Omnath deals 3 damage to any target.

When Omnath enters, it deals damage to any target equal to the number of Elementals you control. Landfall — Whenever a land you control enters, put a +1/+1 counter on target Elemental you control. If you control eight or more lands, draw a card.

You may play lands from your graveyard. Unearth {G}{G} ({G}{G}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Trample Landfall — Whenever a land you control enters, you may create a 4/4 green Beast creature token.

Flying Landfall — Whenever a land you control enters, you may gain control of target creature for as long as you control this creature.

Untap all permanents you control during each other player's untap step.

First strike, deathtouch You may play an additional land on each of your turns. Creatures and nonbasic lands your opponents control enter tapped. Whenever Thalia and The Gitrog Monster attacks, sacrifice a creature or land, then draw a card.

At the beginning of each upkeep, untap all creatures and lands.

Enchant creature Enchanted creature gets +2/+2 and has "Whenever this creature attacks, untap all lands you control." Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

If you tap a permanent for mana, it produces twice as much of that mana instead.

You may cast spells from your hand without paying their mana costs.

Return target nonland permanent you don't control to its owner's hand. Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Permanents you control gain hexproof and indestructible until end of turn.