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

{3}, Sacrifice this creature: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Colossal Rattlewurm has flash as long as you control a Desert. Trample {1}{G}, Exile this card from your graveyard: Search your library for a Desert card, put it onto the battlefield tapped, then shuffle.

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

Creature spells you cast with power 4 or greater cost {2} less to cast. Whenever Goreclaw attacks, each creature you control with power 4 or greater gets +1/+1 and gains trample until end of turn.

{T}: Add {G}.

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

You don't lose unspent green mana as steps and phases end. Omnath gets +1/+1 for each unspent green mana you have.

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

{T}: Add one mana of any color. At the beginning of your upkeep, put a night counter on this artifact. Then if it has eight or more night counters on it, remove all of them and create eight colorless snow artifact tokens named Replicated Ring with "{T}: Add one mana of any color."

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

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.

You have no maximum hand size. {T}: Add {C}.

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

Trample Morbid — This creature enters with four +1/+1 counters on it if a creature died this turn.

Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters with three +1/+1 counters on it.) Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Vigilance, trample

Trample At the beginning of your upkeep, sacrifice this creature unless you sacrifice an enchantment.

Threshold — This creature gets +4/+4 as long as seven or more cards are in your graveyard.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Kicker {2}{G} (You may pay an additional {2}{G} as you cast this spell.) If this creature was kicked, it enters with three +1/+1 counters on it and with haste.

When this creature enters, you gain 4 life.

Trample When this creature enters, scry 3, then reveal the top card of your library. You gain life equal to that card's mana value.

Whenever this creature blocks or becomes blocked by a creature, destroy that creature. You gain life equal to that creature's toughness.

Put a +1/+1 counter on target creature you control if its power is 4 or greater. Then that creature gets +1/+1 until end of turn and fights target creature you don't control.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Destroy target artifact or enchantment.

Enchant creature Enchanted creature is a Treefolk with base power and toughness 0/4 and loses all abilities.

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Target creature you control deals damage equal to its power to target creature you don't control. If the creature you control has trample, excess damage is dealt to that creature's controller instead.

Target creature you control deals damage equal to its power to target creature you don't control. Create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")

Trample When this creature enters, if your life total is less than 7, your life total becomes 7. As long as you have 7 or more life, damage that would reduce your life total to less than 7 reduces it to 7 instead.

Trample When this creature dies, create a 6/6 black Wurm creature token with trample.

Create a 6/6 green Wurm creature token. Flashback {3}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

When this creature dies, create seven 1/1 green Insect creature tokens.

Trample When this creature dies, create three 5/5 green Wurm creature tokens with trample. When Worldspine Wurm is put into a graveyard from anywhere, shuffle it into its owner's library.

Buyback {2}{G} (You may pay an additional {2}{G} as you cast this spell. If you do, put this card into your hand as it resolves.) Create an X/X green Wurm creature token.

Deathtouch, lifelink When this creature dies, create a 3/3 colorless Phyrexian Wurm artifact creature token with deathtouch and a 3/3 colorless Phyrexian Wurm artifact creature token with lifelink.

Trample When this creature enters, you gain 3 life and draw a card. {2}{G}: Put this card from your graveyard into your library third from the top.

When this enchantment enters, if you control a creature with power 4 or greater, draw a card. Creatures you control have trample. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.) Whenever a creature you control with power 4 or greater enters, draw a card.

+1: Create a 3/3 green Beast creature token. −3: Draw cards equal to the greatest power among creatures you control. −6: Create a 6/6 green Wurm creature token for each land you control.

Other creatures have "Whenever this creature attacks, you may have it fight Grothama, All-Devouring." When Grothama leaves the battlefield, each player draws cards equal to the amount of damage dealt to Grothama this turn by sources they controlled.

Kicker {5} (You may pay an additional {5} as you cast this spell.) Target creature gets +2/+2 until end of turn. If this spell was kicked, that creature gets +5/+5 until end of turn instead.

Until end of turn, double target creature's power X times.

Target creature gets +1/+1 until end of turn for each Forest you control.

At the beginning of each combat, double the power and toughness of each creature you control until end of turn.