At the beginning of combat on your turn, choose an opponent at random. Ruhan of the Fomori attacks that player this combat if able.

: The next time a land source of your choice would deal damage to you this turn, prevent that damage.

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

When Rune-Brand Juggler enters the battlefield, suspect up to one target creature you control. (A suspected creature has menace and can't block.)

, Sacrifice a suspected creature: Target creature gets -5/-5 until end of turn.

When you have 30 or more life, flip Rune-Tail, Kitsune Ascendant.

Enchant creature with power 3 or less

When Runner's Bane enters the battlefield, tap enchanted creature.

Enchanted creature doesn't untap during its controller's untap step.

As Rustic Clachan enters the battlefield, you may reveal a Kithkin card from your hand. If you don't, Rustic Clachan enters the battlefield tapped.

: Add .

Reinforce 1— (, Discard this card: Put a +1/+1 counter on target creature.)

When Ruthless Technomancer enters the battlefield, you may sacrifice another creature you control. If you do, create a number of Treasure tokens equal to that creature's power.

, Sacrifice X artifacts: Return target creature card with power X or less from your graveyard to the battlefield. X can't be 0.

Whenever Rysorian Badger attacks and isn't blocked, you may exile up to two target creature cards from defending player's graveyard. If you do, you gain 1 life for each card exiled this way and Rysorian Badger assigns no combat damage this turn.

Menace

At the beginning of your end step, if you have the initiative, create a Treasure token. Create three of those tokens instead if you've completed a dungeon.

Choose a Background (You can have a Background as a second commander.)

If you would draw a card, instead reveal the top three cards of your library. Put all creature cards revealed this way into your hand and the rest on the bottom of your library in any order.

, : Create a token that's a copy of another target creature or artifact you control, except it's an artifact in addition to its other types. It gains haste. Sacrifice it at the beginning of the next end step.

When Sailor of Means enters the battlefield, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Whenever Saint Traft and Rem Karolus becomes tapped, create a 1/1 red Human creature token if this is the first time this ability has resolved this turn. If it's the second time, create a 1/1 blue Spirit creature token with flying. If it's the third time, create a 4/4 white Angel creature token with flying.

Whenever you cast a spell that has convoke, untap Saint Traft and Rem Karolus.

You may sacrifice three artifacts rather than pay this spell's mana cost.

Exile three artifact cards from your graveyard: Return Salvage Titan from your graveyard to your hand.

Partner with Frodo, Adventurous Hobbit (When this creature enters the battlefield, target player may put Frodo into their hand from their library, then shuffle.)

At the beginning of combat on your turn, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Activated abilities of Foods you control cost less to activate.

Creatures you control have haste.

−1: Target creature gets +2/+1 and gains haste until end of turn. Scry 1.

Protection from black and from red

When Sanctifier en-Vec enters the battlefield, exile all cards that are black or red from all graveyards.

If a black or red permanent, spell, or card not on the battlefield would be put into a graveyard, exile it instead.

Destroy target artifact or enchantment. You gain 3 life.

As Sanctuary Blade becomes attached to a creature, choose a color.

Equipped creature gets +2/+0 and has protection from the last chosen color.

Equip

Humans you control get +1/+1.

, Tap two untapped Humans you control: Tap target creature an opponent controls.

First strike

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

When you cycle Sanctuary Smasher, put a first strike counter on target creature you control.

Flying

Sanctuary Warden enters the battlefield with two shield counters on it.

Whenever Sanctuary Warden enters the battlefield or attacks, you may remove a counter from a creature or planeswalker you control. If you do, draw a card and create a 1/1 green and white Citizen creature token.

Flying

When Sanctum Gargoyle enters the battlefield, you may return target artifact card from your graveyard to your hand.

At the beginning of your upkeep, you may search your library and/or graveyard for a Shrine card and put it onto the battlefield. If you search your library this way, shuffle.

If an ability of another Shrine you control triggers while you control six or more Shrines, that ability triggers an additional time.

: Add .

, : Return target commander you own from the battlefield to your hand. Activate only during your turn.

, Discard a land card or Shrine card: Sanctum of Shattered Heights deals X damage to target creature or planeswalker, where X is the number of Shrines you control.

(Transforms from Azor's Gateway.)

: Add X mana of any one color, where X is your life total.

: Add .

Whenever you cast a colorless spell with mana value 7 or greater, you may sacrifice Sanctum of Ugin. If you do, search your library for a colorless creature card, reveal it, put it into your hand, then shuffle.

As Sanctum Prelate enters the battlefield, choose a number.

Noncreature spells with mana value equal to the chosen number can't be cast.

Lifelink

Discard a historic card: Sanctum Spirit gains indestructible until end of turn. (Artifacts, legendaries, and Sagas are historic.)

Scry 1, then draw a card. (Then exile this card. You may cast the creature later from exile.)

When Sand Scout enters the battlefield, if an opponent controls more lands than you, search your library for a Desert card, put it onto the battlefield tapped, then shuffle.

Whenever one or more land cards are put into your graveyard from anywhere, create a 1/1 red, green, and white Sand Warrior creature token. This ability triggers only once each turn.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

You may choose not to untap Sand Squid during your untap step.

: Tap target creature. That creature doesn't untap during its controller's untap step for as long as Sand Squid remains tapped.

, : Target creature gains islandwalk until end of turn. When that creature dies this turn, destroy Sandals of Abdallah. (A creature with islandwalk can't be blocked as long as defending player controls an Island.)

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

Sandblast deals 5 damage to target attacking or blocking creature.

, : Target player mills X cards.

Enchant creature

Prevent all combat damage that would be dealt to and dealt by enchanted creature.

Flash

When Sandstalker Moloch enters the battlefield, if an opponent cast a blue and/or black spell this turn, look at the top four cards of your library. You may reveal a permanent card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Reach

When Sandsteppe Mastodon enters the battlefield, bolster 5. (Choose a creature with the least toughness among creatures you control and put five +1/+1 counters on it.)

When Sandsteppe Scavenger enters the battlefield, bolster 2. (Choose a creature with the least toughness among creatures you control and put two +1/+1 counters on it.)

Sandstone Bridge enters the battlefield tapped.

When Sandstone Bridge enters the battlefield, target creature gets +1/+1 and gains vigilance until end of turn.

: Add .

Sandstone Needle enters the battlefield tapped with two depletion counters on it.

, Remove a depletion counter from Sandstone Needle: Add . If there are no depletion counters on Sandstone Needle, sacrifice it.

First strike (This creature deals combat damage before creatures without first strike.)

: Sandstone Warrior gets +1/+0 until end of turn.

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

When Sandstorm Salvager enters the battlefield, create a 3/3 colorless Golem artifact creature token.

, : Put a +1/+1 counter on each creature token you control. They gain trample until end of turn.

Flying

Whenever an opponent casts a spell during their turn, they can't attack you or planeswalkers you control this turn.

Each opponent who attacked you or a planeswalker you control this turn can't cast spells.

Enchant creature

Enchanted creature gets +3/-3.

Flying

Whenever a creature an opponent controls dies, you may gain 3 life.

Whenever an opponent discards a card, you may gain 3 life.

You draw X cards and you lose X life, where X is your devotion to black. (Each in the mana costs of permanents you control counts toward your devotion to black.)