{T}: Untap target Forest.

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

Cast this spell only before the combat damage step.

Target creature gains trample and gets +X/+0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.

Flying

{T}: Add one mana of any color.

{T}: Add {C}.

Capricopian enters the battlefield with X +1/+1 counters on it.

{2}: Put a +1/+1 counter on Capricopian, then you may reselect which player Capricopian is attacking. Only the player Capricopian is attacking may activate this ability and only during the declare attackers step. (It can't attack its controller.)

Enchant creature

When Colossification enters the battlefield, tap enchanted creature.

Enchanted creature gets +20/+20.

All creatures have haste.

Haste

When Craterhoof Behemoth enters the battlefield, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control.

As an additional cost to cast this spell, sacrifice a land.

Search your library for a land card, put that card onto the battlefield, then shuffle.

Emerge {6}{G}{G}{G} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)

When you cast this spell, creatures you control get +2/+2 and gain trample until end of turn.

Trample, haste

Choose target artifact or enchantment. Its owner shuffles it into their library.

{T}: Add {G}.

When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

{T}: Add {G}.

Vigilance

Hydra spells you cast cost {4} less to cast.

Whenever a creature you control becomes the target of a spell, Gargos, Vicious Watcher fights up to one target creature you don't control.

When Garruk's Uprising enters the battlefield, if you control a creature with power 4 or greater, draw a card.

Creatures you control have trample. (They can deal excess combat damage to the player or planeswalker they're attacking.)

Whenever a creature with power 4 or greater enters the battlefield under your control, 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.

When you cast this spell, reveal the top X cards of your library. You may put a nonland permanent card with mana value X or less from among them onto the battlefield. Then shuffle the rest into your library.

Genesis Hydra enters the battlefield with X +1/+1 counters on it.

Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.

Trample, haste

At the beginning of the end step, sacrifice Groundbreaker.

Whenever a nontoken creature enters the battlefield under your control, if it doesn't have the same name as another creature you control or a creature card in your graveyard, draw a card.

Hickory Woodlot enters the battlefield tapped with two depletion counters on it.

{T}, Remove a depletion counter from Hickory Woodlot: Add {G}{G}. If there are no depletion counters on Hickory Woodlot, sacrifice it.

Whenever Hydra Omnivore deals combat damage to an opponent, it deals that much damage to each other opponent.

If you control a Forest, rather than pay this spell's mana cost, you may have an opponent gain 3 life.

Target creature gets +4/+4 until end of turn.

{T}, Sacrifice Jeweled Lotus: Add three mana of any one color. Spend this mana only to cast your commander.

Trample

Kalonian Hydra enters the battlefield with four +1/+1 counters on it.

Whenever Kalonian Hydra attacks, double the number of +1/+1 counters on each creature you control.

Trample

Lifeblood Hydra enters the battlefield with X +1/+1 counters on it.

When Lifeblood Hydra dies, you gain life and draw cards equal to its power.

{T}: Add {G}.

Lupine Prototype can't attack or block unless a player has no cards in hand.

Trample

Whenever a player casts a spell, put a +1/+1 counter on Managorger Hydra.

Target creature gets +2/+2 until end of turn. If you cast this spell during your main phase, that creature gets +4/+4 until end of turn instead.

This spell can't be countered.

Haste, protection from blue

Mistcutter Hydra enters the battlefield with X +1/+1 counters on it.

Destroy target artifact or enchantment.

Destroy target artifact or enchantment. Its controller gains 4 life.

All creatures able to block Nessian Boar do so.

Whenever Nessian Boar becomes blocked by a creature, that creature's controller draws a card.

{T}: Add {C}.

{2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

You may play an additional land on each of your turns.

Play with the top card of your library revealed.

You may play lands from the top of your library.

Until end of turn, creatures you control gain trample and get +X/+X, where X is the greatest power among creatures you control.

Whenever Pathbreaker Ibex attacks, creatures you control gain trample and get +X/+X until end of turn, where X is the greatest power among creatures you control.

Trample

When Phyrexian Dreadnought enters the battlefield, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

If damage would be dealt to Phyrexian Hydra, prevent that damage. Put a -1/-1 counter on Phyrexian Hydra for each 1 damage prevented this way.

Cumulative upkeep--Sacrifice a creature. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Primordial Hydra enters the battlefield with X +1/+1 counters on it.

At the beginning of your upkeep, double the number of +1/+1 counters on Primordial Hydra.

Primordial Hydra has trample as long as it has ten or more +1/+1 counters on it.

Protean Hydra enters the battlefield with X +1/+1 counters on it.

If damage would be dealt to Protean Hydra, prevent that damage and remove that many +1/+1 counters from it.

Whenever a +1/+1 counter is removed from Protean Hydra, put two +1/+1 counters on it at the beginning of the next end step.

Return a Forest you control to its owner's hand: Untap target creature. Activate only once each turn.

Kicker {4} (You may pay an additional {4} as you cast this spell.)

Vanishing 2 (This creature enters the battlefield with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

If Ravaging Riftwurm was kicked, it enters the battlefield with three additional time counters on it.

Choose one --

• Draw cards equal to the greatest power among non-Human creatures you control.

• Non-Human creatures you control get +3/+3 until end of turn.

Draw cards equal to the greatest power among creatures you control.

You may cast a spell with mana value 5 or less from your hand without paying its mana cost.

Until end of turn, target creature you control becomes a green Wurm with base power and toughness 6/4.

Overload {4}{G}{G} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

Flash

Flying, protection from blue

Return a Forest you control to its owner's hand: Untap target creature. Activate only once each turn.

Whenever another creature enters the battlefield, its controller may draw a card if its power is greater than each other creature's power.

{G}, {T}: Add X mana in any combination of colors, where X is the greatest power among creatures you control.

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

Enchant permanent

Enchanted permanent is a colorless Forest land.

Draw cards equal to the power of target creature you control.

Steelbane Hydra enters the battlefield with X +1/+1 counters on it.

{2}{G}, Remove a +1/+1 counter from Steelbane Hydra: Destroy target artifact or enchantment.

Trample, indestructible

Whenever another creature you control attacks, it gains trample and indestructible until end of turn.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)

Equip {1}

When Terastodon enters the battlefield, you may destroy up to three target noncreature permanents. For each permanent put into a graveyard this way, its controller creates a 3/3 green Elephant creature token.

This spell costs {X} less to cast, where X is the greatest power among creatures you control.

{T}: Add {G}{G}. You gain 2 life.

Whenever a nontoken creature enters the battlefield under your control, put a +1/+1 counter on it and draw a card.

Trample

Traxos, Scourge of Kroog enters the battlefield tapped and doesn't untap during your untap step.

Whenever you cast a historic spell, untap Traxos. (Artifacts, legendaries, and Sagas are historic.)

Whenever you cast a permanent spell with a mana cost that contains {X}, double the value of X.

Whenever you cast an instant or sorcery spell or activate an ability, if that spell's mana cost or that ability's activation cost contains {X}, copy that spell or ability. You may choose new targets for the copy.

Vastwood Hydra enters the battlefield with X +1/+1 counters on it.

When Vastwood Hydra dies, you may distribute a number of +1/+1 counters equal to the number of +1/+1 counters on Vastwood Hydra among any number of creatures you control.

Untap all creatures you control.

Trample

Voracious Hydra enters the battlefield with X +1/+1 counters on it.

When Voracious Hydra enters the battlefield, choose one --

• Double the number of +1/+1 counters on Voracious Hydra.

• Voracious Hydra fights target creature you don't control.

{T}: Add {C}.

{G}, {T}: Untap target Elf.

Return an Elf you control to its owner's hand: Untap target creature. Activate only once each turn.