Name: Siege Zombie Cost: 1B Type: Creature -- Zombie Pow/Tgh: 2/2 Rules Text: Tap three untapped creatures you control: Each opponent loses 1 life. Set/Rarity: The List common, Innistrad: Midnight Hunt common, Innistrad: Double Feature common, Innistrad Remastered common Price: $0.06

Name: Siegecraft Cost: 3W Type: Enchantment -- Aura Rules Text: Enchant creature Enchanted creature gets +2/+4. Set/Rarity: Khans of Tarkir common, The List common Price: $0.04

Name: Siegfried, Famed Swordsman Cost: 3B Type: Legendary Creature -- Human Warrior Rogue Pow/Tgh: 2/2 Rules Text: Menace When Siegfried enters, mill three cards. Then put X +1/+1 counters on Siegfried, where X is twice the number of creature cards in your graveyard. Set/Rarity: Final Fantasy Commander rare Price: $0.25

Name: Sierra, Nuka's Biggest Fan Cost: 3W Type: Legendary Creature -- Human Citizen Pow/Tgh: 3/4 Rules Text: The Nuka-Cola Challenge -- Whenever one or more creatures you control deal combat damage to a player, put a quest counter on Sierra and create a Food token. Whenever you sacrifice a Food, target creature you control gets +X/+X until end of turn, where X is the number of quest counters on Sierra. Set/Rarity: Fallout rare Price: $0.30

Name: Sifter of Skulls Cost: 3B Type: Creature -- Eldrazi Pow/Tgh: 4/3 Rules Text: Devoid (This card has no color.) Whenever another nontoken creature you control dies, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add {C}." ({C} represents colorless mana.) Set/Rarity: Oath of the Gatewatch rare, Oath of the Gatewatch Promos rare, Modern Horizons 3 Commander rare Price: $0.79

Name: Sigarda's Aid Cost: W Type: Enchantment Rules Text: You may cast Aura and Equipment spells as though they had flash. Whenever an Equipment you control enters, you may attach it to target creature you control. Set/Rarity: Eldritch Moon Promos rare, Eldritch Moon rare, Secret Lair Drop rare, Commander Legends rare, Shadows over Innistrad Remastered rare Price: $16.86

Name: Sigarda's Imprisonment Cost: 2W Type: Enchantment -- Aura Rules Text: Enchant creature Enchanted creature can't attack or block. {4}{W}: Exile enchanted creature. Create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this token: Draw a card.") Set/Rarity: Innistrad: Crimson Vow common, Innistrad: Double Feature common Price: $0.09

Name: Sigarda's Splendor Cost: 2WW Type: Enchantment Rules Text: As this enchantment enters, note your life total. At the beginning of your upkeep, draw a card if your life total is greater than or equal to the last noted life total for this enchantment. Then note your life total. Whenever you cast a white spell, you gain 1 life. Set/Rarity: Magic Online Promos rare, Innistrad: Midnight Hunt rare, Innistrad: Midnight Hunt Promos rare, Innistrad: Double Feature rare Price: $0.61

Name: Sigarda's Summons Cost: 4WW Type: Enchantment Rules Text: Creatures you control with +1/+1 counters on them have base power and toughness 4/4, have flying, and are Angels in addition to their other types. Set/Rarity: Magic Online Promos rare, Innistrad: Crimson Vow rare, Innistrad: Crimson Vow Promos rare, Innistrad: Double Feature rare Price: $0.29

Name: Sigarda's Vanguard Cost: 4W Type: Creature -- Angel Pow/Tgh: 3/3 Rules Text: Flash Flying Whenever this creature enters or attacks, choose any number of creatures with different powers. Those creatures gain double strike until end of turn. Set/Rarity: Midnight Hunt Commander rare Price: $1.29

Name: Sigardian Priest Cost: 1W Type: Creature -- Human Cleric Pow/Tgh: 1/2 Rules Text: {1}, {T}: Tap target non-Human creature. Set/Rarity: Eldritch Moon common, Shadows over Innistrad Remastered common Price: $0.08

Name: Sigardian Savior Cost: 3WW Type: Creature -- Angel Pow/Tgh: 3/3 Rules Text: Flying When this creature enters, if you cast it, return up to two target creature cards with mana value 2 or less from your graveyard to the battlefield. Set/Rarity: Magic Online Promos mythic, Innistrad: Midnight Hunt mythic, Innistrad: Midnight Hunt Promos mythic, Innistrad: Double Feature mythic Price: $0.39

Name: Sightless Brawler Cost: 1W Type: Enchantment Creature -- Human Warrior Pow/Tgh: 3/2 Rules Text: Bestow {4}{W} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.) This creature can't attack alone. Enchanted creature gets +3/+2 and can't attack alone. Set/Rarity: Journey into Nyx uncommon Price: $0.04

Name: Sightless Ghoul Cost: 3B Type: Creature -- Zombie Soldier Pow/Tgh: 2/2 Rules Text: This creature can't block. Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.) Set/Rarity: Dark Ascension common Price: $0.17

Name: Sigil of Distinction Cost: X Type: Artifact -- Equipment Rules Text: This Equipment enters with X charge counters on it. Equipped creature gets +1/+1 for each charge counter on this Equipment. Equip--Remove a charge counter from this Equipment. Set/Rarity: Shards of Alara rare Price: $1.41

Name: Sigil of Myrkul Cost: 2B Type: Enchantment Rules Text: At the beginning of combat on your turn, mill a card. When you do, if there are four or more creature cards in your graveyard, put a +1/+1 counter on target creature you control and it gains deathtouch until end of turn. (To mill a card, put the top card of your library into your graveyard.) Set/Rarity: Commander Legends: Battle for Baldur's Gate uncommon, Alchemy Horizons: Baldur's Gate uncommon Price: $0.11

Name: Sigil of Valor Cost: 2 Type: Artifact -- Equipment Rules Text: Whenever equipped creature attacks alone, it gets +1/+1 until end of turn for each other creature you control. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.) Set/Rarity: Magic Origins uncommon, The List uncommon, The Brothers' War Retro Artifacts uncommon Price: $0.17

Name: Sigil of the Empty Throne Cost: 3WW Type: Enchantment Rules Text: Whenever you cast an enchantment spell, create a 4/4 white Angel creature token with flying. Set/Rarity: Conflux rare, Planechase 2012 rare, Magic Origins rare, Commander 2015 rare, Planechase Anthology rare, Commander 2018 rare, Historic Anthology 2 rare, Time Spiral Remastered special, Jumpstart 2022 rare, Commander Masters rare, Duskmourn: House of Horror Commander rare Price: $0.40

Name: Sigil of the New Dawn Cost: 3W Type: Enchantment Rules Text: Whenever a creature is put into your graveyard from the battlefield, you may pay {1}{W}. If you do, return that card to your hand. Set/Rarity: Onslaught rare, Ultimate Masters uncommon, The List uncommon Price: $0.21

Name: Sigiled Contender Cost: 3W Type: Creature -- Human Warrior Pow/Tgh: 3/3 Rules Text: This creature has lifelink as long as it has a +1/+1 counter on it. (Damage dealt by this creature also causes you to gain that much life.) Set/Rarity: Core Set 2021 uncommon Price: $0.28