As long as Guardian Beast is untapped, noncreature artifacts you control can't be enchanted, they have indestructible, and other players can't gain control of them. This effect doesn't remove Auras already attached to those artifacts.

At the beginning of your upkeep, sacrifice Gurzigost unless you put two cards from your graveyard on the bottom of your library.

, Discard a card: You may have Gurzigost assign its combat damage this turn as though it weren't blocked.

Graft 3 (This creature enters the battlefield with three +1/+1 counters on it. Whenever another creature enters the battlefield, you may move a +1/+1 counter from this creature onto it.)

: Target creature with a +1/+1 counter on it gains flying until end of turn.

Flying

When Herald of the Forgotten enters the battlefield, if you cast it, return any number of target permanent cards with cycling abilities from your graveyard to the battlefield.

Whenever another creature enters the battlefield under your control, Herd Gnarr gets +2/+2 until end of turn.

Cycling (, Discard this card: Draw a card.)

When Hunted Wumpus enters the battlefield, each other player may put a creature card from their hand onto the battlefield.

When you cast this spell, you gain half X life and draw half X cards. Round down each time.

Flying, trample

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

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Flying, trample

Whenever this creature mutates, exile cards from the top of your library until you exile a nonland permanent card. Put that card onto the battlefield or into your hand.

Flying, first strike

, Reveal Infernal Spawn of Evil from your hand, Say "It's coming": Infernal Spawn of Evil deals 1 damage to target opponent or planeswalker. Activate only during your upkeep and only once each turn.

: Insatiable Souleater gains trample until end of turn. ( can be paid with either or 2 life.)

Haste

Iron-Barb Hellion can't block.

When you cast a spell, return Jackalope Herd to its owner's hand.

Shroud (This creature can't be the target of spells or abilities.)

Whenever Karplusan Wolverine becomes blocked, you may have it deal 1 damage to any target.

Trample

When Kazandu Stomper enters the battlefield, return up to two lands you control to their owner's hand.

At the beginning of your end step, you may sacrifice another creature. If you do, reveal cards from the top of your library until you reveal a nonlegendary creature card with lesser mana value, put it onto the battlefield, then put the rest on the bottom of your library in a random order.

Whenever you cast an instant or sorcery spell, Kiln Fiend gets +3/+0 until end of turn.

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

: Regenerate Krakilin.

Threshold — Krosan Beast gets +7/+7 as long as seven or more cards are in your graveyard.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Cycling (, Discard this card: Draw a card.)

When you cycle Krosan Tusker, you may search your library for a basic land card, reveal that card, put it into your hand, then shuffle. (Do this before you draw.)

Beast spells you cast cost less to cast.

: Regenerate target Beast.

Whenever Laccolith Grunt becomes blocked, you may have it deal damage equal to its power to target creature. If you do, Laccolith Grunt assigns no combat damage this turn.

Whenever Laccolith Warrior becomes blocked, you may have it deal damage equal to its power to target creature. If you do, Laccolith Warrior assigns no combat damage this turn.

When Landscaper Colos enters the battlefield, put target card from an opponent's graveyard on the bottom of their library.

Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Whenever Lexivore deals damage to a player, destroy target permanent other than Lexivore with the most lines of text in its text box. (If two or more cards are tied, target any one of them.)

Haste; fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Whenever Lightning Reaver deals combat damage to a player, put a charge counter on it.

At the beginning of your end step, Lightning Reaver deals damage equal to the number of charge counters on it to each opponent.

: Loathsome Catoblepas must be blocked this turn if able.

When Loathsome Catoblepas dies, target creature an opponent controls gets -3/-3 until end of turn.

Ward

At the beginning of your upkeep, exile the top X cards of your library, where X is the number of card types among other nonland permanents you control. You may play those cards this turn.

Lovestruck Beast can't attack unless you control a 1/1 creature.

Vigilance

When Lumbering Battlement enters the battlefield, exile any number of other nontoken creatures you control until it leaves the battlefield.

Lumbering Battlement gets +2/+2 for each card exiled with it.

Flying, trample

Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Escape—, Exile a land you control, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Lurker can't be the target of spells unless it attacked or blocked this turn.

Whenever a creature you control explores, target creature an opponent controls gets -2/-2 until end of turn.

Trample

Landfall — Whenever a land enters the battlefield under your control, Makindi Sliderunner gets +1/+1 until end of turn.

Marath, Will of the Wild enters the battlefield with a number of +1/+1 counters on it equal to the amount of mana spent to cast it.

, Remove X +1/+1 counters from Marath: Choose one —

• Put X +1/+1 counters on target creature. X can't be 0.

• Marath deals X damage to any target. X can't be 0.

• Create an X/X green Elemental creature token. X can't be 0.

Sacrifice a Swamp: Marsh Lurker gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

Trample

When Megatherium enters the battlefield, sacrifice it unless you pay for each card in your hand.

Migloz, Maze Crusher enters the battlefield with five oil counters on it.

, Remove an oil counter from Migloz: It gains vigilance and menace until end of turn.

, Remove two oil counters from Migloz: It gets +2/+2 until end of turn.

, Remove three oil counters from Migloz: Destroy target artifact or enchantment.

: Turn Mischievous Quanar face down.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Mischievous Quanar is turned face up, copy target instant or sorcery spell. You may choose new targets for that copy.

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

When Mold Shambler enters the battlefield, if it was kicked, destroy target noncreature permanent.

At the beginning of each player's upkeep, that player sacrifices an artifact.

Flash

When Muck Drubb enters the battlefield, change the target of target spell that targets only a single creature to Muck Drubb.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Vigilance

: You may put a basic land card from your hand onto the battlefield.

: Return target basic land you control to its owner's hand.

Flying

Whenever you cast a spell from exile, copy it. You may choose new targets for the copy. If it's a permanent spell, the copy gains haste and "At the beginning of the end step, sacrifice this permanent." (A copy of a permanent spell becomes a token.)

Reach (This creature can block creatures with flying.)