Flying
Sphinx spells you cast cost less to cast.
Whenever Unesh or another Sphinx you control enters, reveal the top four cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Hexproof
At the beginning of combat on your turn, put two +1/+1 counters on another target creature you control.
Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

: Add one mana of any color in your commander's color identity.

Flying, vigilance
When Ao dies, choose one —
• Look at the top seven cards of your library. Put any number of nonland permanent cards with total mana value 4 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.
• Put two +1/+1 counters on each permanent you control that's a creature or Vehicle.

Flying
When Derevi enters and whenever a creature you control deals combat damage to a player, you may tap or untap target permanent.
: Put Derevi onto the battlefield from the command zone.

Trample
This creature enters with four +1/+1 counters on it.
Whenever this creature attacks, double the number of +1/+1 counters on each creature you control.

Each spell costs more to cast except during its controller's turn.

(: Add .)

This spell costs less to cast, where X is the total power of creatures you control.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

This land enters tapped unless you control a Swamp or a Forest.
: Add or .

If you would lose unspent mana, that mana becomes colorless instead.

All Sliver creatures have haste.

Sliver creatures you control have double strike. (They deal both first-strike and regular combat damage.)

Affinity for artifacts (This spell costs less to cast for each artifact you control.)
Flying (This creature can't be blocked except by creatures with flying or reach.)

Flying
Whenever you attack with two or more creatures, draw a card.
Whenever another player attacks with two or more creatures, they draw a card if none of those creatures attacked you.

(: Add .)

When this land enters, it deals 1 damage to target player or planeswalker.
: Add .

Put all creature cards from all graveyards onto the battlefield under your control.

Flying
At the beginning of each upkeep, create a 1/1 red and green Dragon creature token with flying and devour 2. (As the token enters, you may sacrifice any number of creatures. It enters with twice that many +1/+1 counters on it.)

When this creature enters, if was spent to cast it, exile target artifact or enchantment an opponent controls.
When this creature enters, if was spent to cast it, draw two cards, then discard a card.
Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)