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.

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

Creatures your opponents control without flying or reach can't block creatures with power 2 or less.

Partner (You can have two commanders if both have partner.)

All Sliver creatures have flanking. (Whenever a creature without flanking blocks a Sliver, the blocking creature gets -1/-1 until end of turn.)

Deathtouch

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

When Sidisi, Undead Vizier exploits a creature, you may search your library for a card, put it into your hand, then shuffle.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Flying

When Siege Dragon enters the battlefield, 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.

Double strike (This creature deals both first-strike and regular combat damage.)

Whenever Siege Striker attacks, you may tap any number of untapped creatures you control. Siege Striker gets +1/+1 until end of turn for each creature tapped this way.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Trample

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

: Target creature can't block this turn.

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.

Trample

When Sifter Wurm enters the battlefield, scry 3, then reveal the top card of your library. You gain life equal to that card's mana value.

Flying

Other permanents you control have hexproof.

You may look at the top card of your library any time.

You may cast Angel spells and Human spells from the top of your library.

Flying, hexproof

Spells and abilities your opponents control can't cause you to sacrifice permanents.

When Sigardian Evangel enters the battlefield, conjure a card named Sigardian Evangel into your hand. Discard that card at the beginning of the next end step.

When Sigardian Evangel enters the battlefield, tap target permanent you don't control.

, : Tap target non-Human creature.

At the beginning of combat on your turn, choose any number of creatures with different powers. Each of them gets +X/+X and gains vigilance until end of turn, where X is Sigardian Zealot's power.

Bestow (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 to a creature.)

Sightless Brawler can't attack alone.

Enchanted creature gets +3/+2 and can't attack alone.

Whenever a creature enters the battlefield under your control, if that creature is 1/1, put two +1/+1 counters on it.

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

First strike

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

Whenever Sigiled Skink attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)

Signal Pest can't be blocked except by creatures with flying or reach.

Flash

First strike, protection from God creatures

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

Deathtouch

Whenever Silas Renn, Seeker Adept deals combat damage to a player, choose target artifact card in your graveyard. You may cast that card this turn.

Partner (You can have two commanders if both have partner.)

No more than one creature can attack each combat.

No more than one creature can block each combat.

: Destroy target blocking creature at end of combat.

Flying

Devoid (This card has no color.)

Flying

Whenever Silent Skimmer attacks, defending player loses 2 life.

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Silent-Blade Oni deals combat damage to a player, look at that player's hand. You may cast a spell from among those cards without paying its mana cost.

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.

When Silhana Wayfinder enters the battlefield, look at the top four cards of your library. You may reveal a creature or land card from among them and put it on top of your library. Put the rest on the bottom of your library in a random order.

Whenever Silkenfist Fighter becomes blocked, untap it.

Reach

: Silklash Spider deals X damage to each creature with flying.

Flying

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

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.

Flying

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

Whenever another creature you control dies, put a +1/+1 counter on Silumgar Scavenger. It gains haste until end of turn if it exploited that creature.

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 Spell-Eater is turned face up, counter target spell unless its controller pays .

Conjure Elemental — : Untap target land you control. It becomes an 8/8 Elemental creature with trample and haste until end of turn. It's still a land.

When Silver Deputy enters the battlefield, you may search your library for a basic land card or a Desert card, reveal it, then shuffle and put it on top.

: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery.

Flying, trample

: Add .

Flying

Threshold — Other creatures you control get +2/+2 as long as seven or more cards are in your graveyard.

Trample

When Silverback Shaman dies, draw a card.

Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.)

As long as Silverblade Paladin is paired with another creature, both creatures have double strike.

Enrage — Whenever Silverclad Ferocidons is dealt damage, each opponent sacrifices a permanent.

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Ninjutsu abilities you activate cost less to activate.

Other Ninja and Rogue creatures you control get +1/+1.