Name: Sickening Shoal Cost: XBB Type: Instant -- Arcane Rules Text: You may exile a black card with mana value X from your hand rather than pay this spell's mana cost. Target creature gets -X/-X until end of turn. Set/Rarity: Betrayers of Kamigawa rare Price: $14.87

Name: Sickle Dancer Cost: 2B Type: Creature -- Human Warrior Pow/Tgh: 3/2 Rules Text: Whenever this creature attacks, if your team controls another Warrior, this creature gets +1/+1 until end of turn. Set/Rarity: Battlebond common Price: $0.04

Name: Sickle Ripper Cost: 1B Type: Creature -- Elemental Warrior Pow/Tgh: 2/1 Rules Text: Wither (This deals damage to creatures in the form of -1/-1 counters.) Set/Rarity: Shadowmoor common, Modern Masters 2015 common Price: $0.10

Name: Sickleslicer Cost: 3 Type: Artifact -- Equipment Rules Text: Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.) Equipped creature gets +2/+2. Equip {4} Set/Rarity: New Phyrexia uncommon, Modern Masters 2015 common, Double Masters common Price: $0.05

Name: Sidar Jabari Cost: 3W Type: Legendary Creature -- Human Knight Pow/Tgh: 2/2 Rules Text: Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) Whenever Sidar Jabari attacks, tap target creature defending player controls. Set/Rarity: Mirage rare, Vintage Masters uncommon Price: $0.67

Name: Sidequest: Catch a Fish Cost: 2W Type: Enchantment Rules Text: At the beginning of your upkeep, look at the top card of your library. If it's an artifact or creature card, you may reveal it and put it into your hand. If you put a card into your hand this way, create a Food token and transform this enchantment. [Front face. Transforms into Cooking Campsite.] Set/Rarity: Final Fantasy uncommon Price: $0.23

Name: Sidequest: Hunt the Mark Cost: 3BB Type: Enchantment Rules Text: When this enchantment enters, destroy up to one target creature. At the beginning of your end step, if a creature died under an opponent's control this turn, create a Treasure token. Then if you control three or more Treasures, transform this enchantment. [Front face. Transforms into Yiazmat, Ultimate Mark.] Set/Rarity: Final Fantasy uncommon Price: $0.16

Name: Sidewinder Sliver Cost: W Type: Creature -- Sliver Pow/Tgh: 1/1 Rules Text: All Sliver creatures have flanking. (Whenever a creature without flanking blocks a Sliver, the blocking creature gets -1/-1 until end of turn.) Set/Rarity: Time Spiral common, Secret Lair Drop rare, Time Spiral Remastered common Price: $0.25

Name: Sidisi's Pet Cost: 3B Type: Creature -- Zombie Ape Pow/Tgh: 1/4 Rules Text: Lifelink (Damage dealt by this creature also causes you to gain that much life.) Morph {1}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) Set/Rarity: Khans of Tarkir common Price: $0.06

Name: Sidisi, Regent of the Mire Cost: 1B Type: Legendary Creature -- Zombie Snake Warlock Pow/Tgh: 1/3 Rules Text: {T}, Sacrifice a creature you control with mana value X other than Sidisi: Return target creature card with mana value X plus 1 from your graveyard to the battlefield. Activate only as a sorcery. Set/Rarity: Tarkir: Dragonstorm rare, Tarkir: Dragonstorm Promos rare Price: $0.32

Name: Sidisi, Undead Vizier Cost: 3BB Type: Legendary Creature -- Zombie Snake Pow/Tgh: 4/6 Rules Text: Deathtouch Exploit (When this creature enters, you may sacrifice a creature.) When Sidisi exploits a creature, you may search your library for a card, put it into your hand, then shuffle. Set/Rarity: Dragons of Tarkir Promos rare, Dragons of Tarkir rare, The List rare, Pioneer Masters rare Price: $9.14

Name: Siege Mastodon Cost: 4W Type: Creature -- Elephant Pow/Tgh: 3/5 Rules Text: Set/Rarity: Magic 2010 common, Magic 2011 common, Magic 2012 common, Magic 2014 common, Core Set 2020 common Price: $0.03

Name: Siege Striker Cost: 2W Type: Creature -- Human Soldier Pow/Tgh: 1/1 Rules Text: Double strike (This creature deals both first-strike and regular combat damage.) Whenever this creature attacks, you may tap any number of untapped creatures you control. This creature gets +1/+1 until end of turn for each creature tapped this way. Set/Rarity: Core Set 2021 uncommon Price: $0.08

Name: Siege Veteran Cost: 2W Type: Creature -- Human Soldier Pow/Tgh: 2/2 Rules Text: At the beginning of combat on your turn, put a +1/+1 counter on target creature you control. Whenever another nontoken Soldier you control dies, create a 1/1 colorless Soldier artifact creature token. Set/Rarity: Magic Online Promos rare, The Brothers' War rare, The Brothers' War Promos rare Price: $0.30

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: $0.07

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: $0.24

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: $0.78

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: $17.68