At the beginning of your upkeep, you may put a harmony counter on Instrument of the Bards. {3}{G}, {T}: Search your library for a creature card with mana value equal to the number of harmony counters on Instrument of the Bards, reveal it, and put it into your hand. If that card is legendary, create a Treasure token. Then shuffle.

Arixmethes, Slumbering Isle enters the battlefield tapped with five slumber counters on it. As long as Arixmethes has a slumber counter on it, it's a land. (It's not a creature.) Whenever you cast a spell, you may remove a slumber counter from Arixmethes. {T}: Add {G}{U}.

Trample Bioessence Hydra enters the battlefield with a +1/+1 counter on it for each loyalty counter on planeswalkers you control. Whenever one or more loyalty counters are put on planeswalkers you control, put that many +1/+1 counters on Bioessence Hydra.

Trample Domain — Whenever Briar Hydra deals combat damage to a player, put X +1/+1 counters on target creature you control, where X is the number of basic land types among lands you control.

Whenever you gain life, each opponent loses 1 life. {1}, Sacrifice another creature: Dina, Soul Steeper gets +X/+0 until end of turn, where X is the sacrificed creature's power.

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.

You may have Gigantoplasm enter the battlefield as a copy of any creature on the battlefield, except it has "{X}: This creature has base power and toughness X/X."

Grakmaw, Skyclave Ravager enters the battlefield with three +1/+1 counters on it. Whenever another creature you control dies, if it had a +1/+1 counter on it, put a +1/+1 counter on Grakmaw. When Grakmaw dies, create an X/X black and green Hydra creature token, where X is the number of +1/+1 counters on Grakmaw.

Flash This spell can't be countered. Whenever you cast a spell, choose up to one — • Return target spell you don't control to its owner's hand. • Return target nonland permanent to its owner's hand.

Hungering Hydra enters the battlefield with X +1/+1 counters on it. Hungering Hydra can't be blocked by more than one creature. Whenever Hungering Hydra is dealt damage, put that many +1/+1 counters on it. (It must survive the damage to get the counters.)

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

Flying Whenever you create or sacrifice a token, each opponent loses 1 life.

You may have Mirror Image enter the battlefield as a copy of a creature you control.

Changeling (This card is every creature type.) You may have Moritte of the Frost enter the battlefield as a copy of a permanent you control, except it's legendary and snow in addition to its other types and, if it's a creature, it enters with two additional +1/+1 counters on it and has changeling.

Other green creatures you control get +1/+1. Other blue creatures you control get +1/+1. Untap all green and/or blue creatures you control during each other player's untap step.

As Neverwinter Hydra enters the battlefield, roll X d6. It enters with a number of +1/+1 counters on it equal to the total of those results. Trample Ward {4} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {4}.)

Polukranos enters the battlefield with six +1/+1 counters on it. It escapes with twelve +1/+1 counters on it instead. If damage would be dealt to Polukranos while it has a +1/+1 counter on it, prevent that damage and remove that many +1/+1 counters from it. {1}{B}{G}: Polukranos fights another target creature. Escape—{4}{B}{G}, Exile six other cards from your graveyard.

Whenever a Saproling you control dies, Slimefoot, the Stowaway deals 1 damage to each opponent and you gain 1 life. {4}: Create a 1/1 green Saproling creature token.

Slurrk, All-Ingesting enters the battlefield with five +1/+1 counters on it. Whenever Slurrk or another creature you control dies, if it had a +1/+1 counter on it, put a +1/+1 counter on each creature you control that has a +1/+1 counter on it. Partner (You can have two commanders if both have partner.)

When Stumpsquall Hydra enters the battlefield, distribute X +1/+1 counters among it and any number of commanders.

Flying The Goose Mother enters the battlefield with X +1/+1 counters on it. When The Goose Mother enters the battlefield, create half X Food tokens, rounded up. Whenever The Goose Mother attacks, you may sacrifice a Food. If you do, draw a card.

{T}: Add {G}{U}. Spend this mana only to cast spells with mana value 5 or greater or spells with {X} in their mana costs. {U}, {T}: Draw a card, then discard a card.

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.

Enchant creature Whenever enchanted creature deals damage to an opponent, you may draw a card.

When Deadbridge Chant enters the battlefield, mill ten cards. At the beginning of your upkeep, choose a card at random in your graveyard. If it's a creature card, put it onto the battlefield. Otherwise, put it into your hand.

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead. If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead.

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.) Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)

Enchant planeswalker Enchanted planeswalker has "[−8]: Put all creature cards from all graveyards onto the battlefield under your control." Whenever a creature deals damage to enchanted planeswalker, destroy that creature.

At the beginning of your upkeep, if you have four or more creature cards in your graveyard, you may return target creature card from your graveyard to your hand.

If one or more tokens would be created, twice that many of those tokens are created instead. If one or more +1/+1 counters would be put on a creature, twice that many +1/+1 counters are put on that creature instead.

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.

When Up the Beanstalk enters the battlefield and whenever you cast a spell with mana value 5 or greater, draw a card.

Counter target spell unless its controller pays {4}.

Counter target spell.

Choose one — • Destroy target creature with flying. • Destroy target enchantment.

Destroy target creature without flying.

Counter target creature or enchantment spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Counter target spell with mana value 4 or greater.

Draw two cards, then discard two cards. Untap up to three lands.

Draw a card for each creature you control with a +1/+1 counter on it. Those creatures gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

Counter target spell that targets a permanent you control. Draw a card.

Destroy target creature.

Until end of turn, target creature you control gains "When this creature dies, return it to the battlefield tapped under its owner's control, then create a Wicked Role token attached to it." (Enchanted creature gets +1/+1. When this Aura is put into a graveyard, each opponent loses 1 life.)

Darkmoss Bridge enters the battlefield tapped. Indestructible {T}: Add {B} or {G}.

Dimir Guildgate enters the battlefield tapped. {T}: Add {U} or {B}.

Dismal Backwater enters the battlefield tapped. When Dismal Backwater enters the battlefield, you gain 1 life. {T}: Add {U} or {B}.

({T}: Add {G}.)

Golgari Rot Farm enters the battlefield tapped. When Golgari Rot Farm enters the battlefield, return a land you control to its owner's hand. {T}: Add {B}{G}.

({T}: Add {U}.)

Jungle Hollow enters the battlefield tapped. When Jungle Hollow enters the battlefield, you gain 1 life. {T}: Add {B} or {G}.

Jwar Isle Refuge enters the battlefield tapped. When Jwar Isle Refuge enters the battlefield, you gain 1 life. {T}: Add {U} or {B}.

Manor Gate enters the battlefield tapped. As Manor Gate enters the battlefield, choose a color other than green. {T}: Add {G} or one mana of the chosen color.

Opulent Palace enters the battlefield tapped. {T}: Add {B}, {G}, or {U}.

Oran-Rief, the Vastwood enters the battlefield tapped. {T}: Add {G}. {T}: Put a +1/+1 counter on each green creature that entered the battlefield this turn.

Simic Guildgate enters the battlefield tapped. {T}: Add {G} or {U}.

({T}: Add {U} or {B}.) Sunken Hollow enters the battlefield tapped unless you control two or more basic lands.

({T}: Add {B}.)

Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is the number of cards in your library.

Look at the top five cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

You may play an additional land this turn. Draw a card.

Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it.

Draw a card for each different power among creatures you control.

Destroy all creatures you don't control and all planeswalkers you don't control.

Return X target cards with different mana values from your graveyard to your hand. If eight or more cards were returned to your hand this way, your life total becomes equal to your starting life total. Exile Long Rest.

Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle. Cycling {2} ({2}, Discard this card: Draw a card.)

Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it.

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

Choose two — • Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. • Create a 1/1 white Human creature token. • Create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")

Return target permanent card from your graveyard to your hand. Create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")

Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.