: Add .

: Add . Spend this mana only to cast colorless spells. Activate only if you control seven or more lands.

Vigilance; horsemanship (This creature can't be blocked except by creatures with horsemanship.)

Gain control of target artifact or creature until end of turn. Untap it. It gains haste until end of turn. Create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

When Sibsig Icebreakers enters, each player discards a card.

As an additional cost to cast this spell, discard X cards.

Sickening Dreams deals X damage to each creature and each player.

As long as you control a Desert or there is a Desert card in your graveyard, Sidewinder Naga gets +1/+0 and has trample.

Flying

When Siege Dragon enters, destroy all Walls your opponents control.

Whenever Siege Dragon attacks, if defending player controls no Walls, it deals 2 damage to each creature without flying that player controls.

Replicate (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Target Mountain becomes a 3/1 creature. It's still a land.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Choose one —

• Destroy target artifact.

• Target creature gets +3/+2 and gains trample until end of turn.

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.

Tap three untapped creatures you control: Each opponent loses 1 life.

Enchant creature

Enchanted creature gets +2/+4.

Lieutenant — At the beginning of combat on your turn, if you control your commander, create two 1/1 red Goblin creature tokens. Those tokens gain haste until end of turn.

, Sacrifice a Goblin: Siege-Gang Lieutenant deals 1 damage to any target.

The Nuka-Cola Challenge — Whenever one or more creatures you control deal combat damage to a player, put a quest counter on Sierra, Nuka's Biggest Fan 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.

Flying, trample

Humans you control get +1/+1.

Coven — Whenever Sigarda attacks, if you control three or more creatures with different powers, look at the top five cards of your library. You may reveal a Human creature card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Flying

You and Humans you control have hexproof.

, Exile a card from your graveyard: Create a 1/1 white Human Soldier creature token.

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.

As Sigarda's Splendor 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 Sigarda's Splendor. Then note your life total.

Whenever you cast a white spell, you gain 1 life.

Flash

Flying

Whenever Sigarda's Vanguard enters or attacks, choose any number of creatures with different powers. Those creatures gain double strike until end of turn.

As long as you've put one or more +1/+1 counters on a creature this turn, Sigardian Paladin has trample and lifelink.

: Target creature you control with a +1/+1 counter on it gains trample and lifelink until end of turn.

Flying

When Sigardian Savior enters, if you cast it, return up to two target creature cards with mana value 2 or less from your graveyard to the battlefield.

Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.

Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

: Sighted-Caste Sorcerer gains shroud until end of turn. (It can't be the target of spells or abilities.)

Sightless Ghoul 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.)

Whenever a creature you control enters, if that creature is 1/1, put two +1/+1 counters on it.

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.)

Whenever you cast an enchantment spell, create a 4/4 white Angel creature token with flying.

Whenever a creature is put into your graveyard from the battlefield, you may pay . If you do, return that card to your hand.

, Tap two untapped Wizards you control: Copy target instant or sorcery spell. You may choose new targets for the copy.

Sigiled Contender 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.)

Backup 1 (When this creature enters, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.)

Vigilance

: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Target player draws two cards and loses 2 life.

Search your library for three creature cards and reveal them. If you reveal three cards with different names, choose one of them at random and put that card into your hand. Shuffle the rest into your library.

When Signature Spells enters the battlefield, seek two instant and/or sorcery cards with mana value 3, then exile them.

At the beginning of your upkeep, you may copy a card exiled with Signature Spells. You may cast the copy without paying its mana cost.

Flash

First strike, protection from God creatures

When Sigrid, God-Favored enters, exile up to one target attacking or blocking creature until Sigrid leaves the battlefield.

, Pay 1 life: Add or .

, , Sacrifice Silent Clearing: Draw a card.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Silhana Ledgewalker can't be blocked except by creatures with flying.

Put a +1/+1 counter on each of up to X target creatures you control.

Auras, Equipment, and modified creatures you control gain hexproof until end of turn. (Equipment, Auras you control, and counters are modifications.)

Creatures with power greater than Silumgar Assassin's power can't block it.

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 Silumgar Assassin is turned face up, destroy target creature with power 3 or less an opponent controls.

: Add or .

: Silumgar Monument becomes a 4/4 blue and black Dragon artifact creature with flying until end of turn.

Flash (You may cast this spell any time you could cast an instant.)

Flying

Exploit (When this creature enters, you may sacrifice a creature.)

When Silumgar Sorcerer exploits a creature, counter target creature spell.

Flying, hexproof

Whenever a Dragon you control attacks, creatures defending player controls get -1/-1 until end of turn.

As an additional cost to cast this spell, you may reveal a Dragon card from your hand.

Counter target spell unless its controller pays . If you revealed a Dragon card or controlled a Dragon as you cast this spell, counter that spell instead.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Flying, first strike

: Target creature gets -X/-0 until end of turn, where X is the number of Merfolk and/or Faeries you control.

, , Discard a card: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Magecraft — Whenever you cast or copy an instant or sorcery spell, Silverquill Pledgemage gains your choice of flying or lifelink until end of turn.