Whenever one or more creature cards are put into your graveyard from anywhere, venture into the dungeon. This ability triggers only once each turn. (To venture into the dungeon, enter the first room or advance to the next room.)

Create Undead — Whenever you complete a dungeon, return target creature card from your graveyard to the battlefield.

Seismic Wave deals 2 damage to any target and 1 damage to each nonartifact creature target opponent controls.

Exile Selfless Glyphweaver: Creatures you control gain indestructible until end of turn.

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

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

Whenever an instant or sorcery spell is cast during your turn, Sentinel Tower deals damage to any target equal to 1 plus the number of instant and sorcery spells cast before that spell this turn.

Flying, lifelink

Flying

Whenever Seraph of New Phyrexia attacks, you may sacrifice another creature or artifact. If you do, Seraph of New Phyrexia gets +2/+1 until end of turn.

Equipped creature gets +2/+2.

Whenever equipped creature attacks the player with the most life or tied for most life, create a 4/4 white Angel creature token with flying that's tapped and attacking that player.

Equip

Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents.

Serrated Arrows enters with three arrowhead counters on it.

At the beginning of your upkeep, if there are no arrowhead counters on Serrated Arrows, sacrifice it.

, Remove an arrowhead counter from Serrated Arrows: Put a -1/-1 counter on target creature.

Heroic — Whenever you cast a spell that targets Setessan Oathsworn, put two +1/+1 counters on Setessan Oathsworn.

Exile all attacking creatures target player controls. That player may search their library for that many basic land cards, put those cards onto the battlefield tapped, then shuffle.

: Sewer Crocodile can't be blocked this turn. This ability costs less to activate if there are five or more mana values among cards in your graveyard.

Target creature an opponent controls perpetually gets -2/-2 and gains "At the beginning of each upkeep, this creature perpetually gets -1/-1."

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Scavenge (, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

Choose target creature. If it's attacking, it can't be blocked this turn. If it's blocking, prevent all combat damage that would be dealt this combat by it and each creature it's blocking.

Flying

Whenever another creature you control with flying dies, put a +1/+1 counter on target creature you control.

Flying

The first creature spell you cast each turn costs less to cast.

Whenever an opponent casts their first noncreature spell each turn, Shadow in the Warp deals 2 damage to that player.

Enchant creature

Enchanted creature has first strike.

: Enchanted creature gets +2/+2 until end of turn.

If your life total is less than your starting life total, this spell costs less to cast, where X is the difference.

Return to your hand all cards in your graveyard that you cycled or discarded this turn.

Domain — Look at the top X cards of your library, where X is the number of basic land types among lands you control. Put up to two of them into your hand and the rest into your graveyard. You lose 2 life.

Flanking <I>(Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)</I>

Target opponent loses 3 life.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Tap another untapped Rogue you control: Shadow Stinger gains deathtouch until end of turn.

Whenever Shadow Stinger deals combat damage to a player, that player mills three cards. (They put the top three cards of their library into their graveyard.)

The next time a source of your choice would deal damage to you and/or creatures you control this turn, prevent that damage. If damage from a black source is prevented this way, you gain that much life.

, , Sacrifice Shadowblood Egg: Add . Draw a card.

A deck can have any number of cards named Shadowborn Apostle.

, Sacrifice six creatures named Shadowborn Apostle: Search your library for a Demon creature card, put it onto the battlefield, then shuffle.

Pay 2 life: Shadowcloak Vampire gains flying until end of turn. (It can't be blocked except by creatures with flying or reach.)

Horses you control have haste. (They can attack and as soon as they come under your control.)

Whenever Shadowfax, Lord of Horses attacks, you may put a creature card with lesser power from your hand onto the battlefield tapped and attacking.

When Shadowgrange Archfiend enters, each opponent sacrifices a creature with the greatest power among creatures they control. You gain life equal to the greatest power among creatures sacrificed this way.

Madness—, Pay 8 life. (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

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

Whenever Shadowmage Infiltrator deals combat damage to a player, you may draw a card.

(Transforms from Grasping Shadows.)

: Add .

, , Remove a dread counter from Shadows' Lair: You draw a card and you lose 1 life.

Exile all creatures and planeswalkers with mana value 3 or less from the battlefield and all creature and planeswalker cards with mana value 3 or less from all graveyards.

Shadowstorm deals 2 damage to each creature with shadow.

(: Add or .)

Shadowy Backstreet enters tapped.

When Shadowy Backstreet enters, surveil 1. (Look at the top card of your library. You may put it into 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.)

When Shaleskin Plower is turned face up, destroy target land.

: Add two mana in any combination of colors. Spend this mana only to cast creature spells.

Formidable — , : Each player's life total becomes the number of creatures they control. Activate only if creatures you control have total power 8 or greater.

The controller of target artifact sacrifices it, then reveals cards from the top of their library until they reveal an artifact card. That player puts that card onto the battlefield, then shuffles all other cards revealed this way into their library.

At the beginning of each opponent's upkeep, that player reveals the top card of their library. If it's a creature card, the player puts the card into their graveyard and Shapeshifter's Marrow becomes a copy of that card. (If it does, it loses this ability.)

Target creature gets +2/+2 until end of turn. You may remove a -1/-1 counter from it.

Whenever a nontoken creature an opponent controls dies, exile it.

, Put a creature card exiled with Shelob, Dread Weaver into its owner's graveyard: Put two +1/+1 counters on Shelob. Draw a card.

: Put target creature card with mana value X exiled with Shelob onto the battlefield tapped under your control.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

At the beginning of your upkeep, return target creature card from your graveyard to the battlefield.

At the beginning of each opponent's upkeep, that player sacrifices a creature.

, Sacrifice a creature: Target creature gets +3/+3 until end of turn.

Defender

When Shield-Wall Sentinel enters, you may search your library for a creature card with defender, reveal it, put it into your hand, then shuffle.

Defender (This creature can't attack.)

Shifting Wall enters with X +1/+1 counters on it.

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)

Enchanted creature has flying. (It can't be blocked except by creatures with flying or reach.)

: Return Shimmering Wings to its owner's hand.

Flying

Channel — , Discard Shinen of Flight's Wings: Target creature gains flying until end of turn.

Flying

Shinewend enters with a +1/+1 counter on it.

, Remove a +1/+1 counter from Shinewend: Destroy target enchantment.