Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Whenever you cast a noncreature spell, you may pay . If you do, target creature gains double strike until end of turn.

Flying

Whenever Siani, Eye of the Storm attacks, scry X, where X is the number of attacking creatures with flying.

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

Temporal Foresight — When Sibylline Soothsayer enters, reveal cards from the top of your library until you reveal a nonland card with mana value 3 or greater. Exile that card with three time counters on it. If it doesn't have suspend, it gains suspend. Put the rest of the revealed cards on the bottom of your library in a random order.

Trample

Untapped creatures can't block.

Tapped creatures can block.

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.)

Enchant creature

Enchanted creature gets +1/+1 for each creature you control.

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

When Silver Deputy enters, 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.

You may cast Silver Scrutiny as though it had flash if X is 3 or less.

Draw X cards.

Sima Yi, Wei Field Marshal's power is equal to the number of Swamps you control.

: Add or .

: Simic Keyrune becomes a 2/3 green and blue Crab artifact creature with hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Each player sacrifices an enchantment of their choice.

When Siona, Captain of the Pyleas enters, look at the top seven cards of your library. You may reveal an Aura card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Whenever an Aura you control becomes attached to a creature you control, create a 1/1 white Human Soldier creature token.

At the beginning of each end step, each player discards their hand.

Sisay, Weatherlight Captain gets +1/+1 for each color among other legendary permanents you control.

: Search your library for a legendary permanent card with mana value less than Sisay's power, put that card onto the battlefield, then shuffle.

: Add .

Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters with three +1/+1 counters on it.)

, Sacrifice Skarrgan Skybreaker: It deals damage equal to its power to any target.

As an additional cost to cast this spell, exile X cards from your graveyard.

You draw X cards and you lose X life.

, , Sacrifice a Human: Destroy target creature.

When you cast a creature spell, sacrifice Skittering Monstrosity.

Deathtouch

Hyperphase Threshers — Whenever an artifact you control enters, Skorpekh Destroyer gains first strike until end of turn.

Flying, lifelink

: You and target opponent each draw a card.

Flying

When Sky Hussar enters, untap all creatures you control.

Forecast — Tap two untapped white and/or blue creatures you control, Reveal Sky Hussar from your hand: Draw a card. (Activate only during your upkeep and only once each turn.)

Devoid (This card has no color.)

Flying

Whenever you cast a colorless spell, Sky Scourer gets +1/+0 until end of turn.

Flying, first strike

Flying, menace

Flying

Whenever you cast a noncreature spell, Sky Theater Strix gets +1/+0 until end of turn.

Reach

Whenever you cast a spell with mana value 5 or greater, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Flying

This spell costs less to cast for each enchantment you control.

Flying

Flying

When Skyboon Evangelist enters, support 6. (Put a +1/+1 counter on each of up to six other target creatures.)

Whenever a creature with a counter on it attacks one of your opponents, that creature gains flying until end of turn.

Flying

Skycat Sovereign gets +1/+1 for each other creature you control with flying.

: Create a 1/1 white Cat Bird creature token with flying.

When Skyclave Apparition enters, exile up to one target nonland, nontoken permanent you don't control with mana value 4 or less.

When Skyclave Apparition leaves the battlefield, the exiled card's owner creates an X/X blue Illusion creature token, where X is the mana value of the exiled card.

When Skyclave Cleric enters, you gain 2 life.

Flying

When this creature transforms into Skyclave Invader, look at the top card of your library. If it's a land card, you may put it onto the battlefield. If you don't put the card onto the battlefield, put it into your hand.

Look at the top X cards of your library, where X is three plus the number of creatures in your party. Put three of those cards into your hand and the rest on the bottom of your library in a random order. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Kicker (You may pay an additional as you cast this spell.)

Flying, defender

If Skyclave Sentinel was kicked, it enters with two +1/+1 counters on it.

As long as Skyclave Sentinel has a +1/+1 counter on it, it can attack as though it didn't have defender.

, Sacrifice another creature: Put a +1/+1 counter on Skyclave Shadowcat.

Whenever a creature you control with a +1/+1 counter on it dies, draw a card.

Whenever Skyclaw Thrash attacks, flip a coin. If you win the flip, Skyclaw Thrash gets +1/+1 and gains flying until end of turn.

, : Add .

Flying

Whenever you cast a Spirit or Arcane spell, you may gain control of target creature with that spell's mana value until end of turn.

Reach

When Skyfisher Spider enters, you may sacrifice another creature. When you do, destroy target nonland permanent.

When Skyfisher Spider dies, you may gain 1 life for each creature card in your graveyard. If you do, exile Skyfisher Spider from your graveyard.

As long as Skyhunter Cub is equipped, it gets +1/+1 and has flying.

Flying, vigilance (This creature can't be blocked except by creatures with flying or reach, and attacking doesn't cause this creature to tap.)

Flying

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

Lieutenant — As long as you control your commander, other creatures you control have melee.

Whenever another creature you control enters, put a +1/+1 counter on this creature.

As long as this creature has three or more +1/+1 counters on it, it has flying and is a Knight in addition to its other types.

Flash

This spell can't be countered.

Reach, protection from blue

Flying

When Skyline Despot enters, you become the monarch.

At the beginning of your upkeep, if you're the monarch, create a 5/5 red Dragon creature token with flying.

Flying

When Skyline Savior enters the battlefield, return a permanent you control to its owner's hand. If it's a non-Angel creature card, it perpetually gets +1/+1, gains flying, and becomes an Angel in addition to its other types.

Flying

When Skymarch Bloodletter enters, target opponent loses 1 life and you gain 1 life.

Flying

Whenever Skymark Roc attacks, you may return target creature defending player controls with toughness 2 or less to its owner's hand.