Flying
This creature enters with X +1/+1 counters on it.
When this creature enters, you gain 2 life.

, , Sacrifice a creature: Draw a card and put a soul counter on this artifact. Activate only as a sorcery.
, , Sacrifice this artifact: Each opponent loses life equal to the number of soul counters on this artifact.

Jump — During your turn, Freya Crescent has flying.
: Add . Spend this mana only to cast an Equipment spell or activate an equip ability.

Whenever you attack a player with one or more creatures with power 4 or greater, draw a card.
Exhaust — : Earthbend 4. Activate only during your turn. (Target land you control becomes a 0/0 creature with haste that's still a land. Put four +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped. Activate each exhaust ability only once.)

Reach (This creature can block creatures with flying.)

Enchant creature you control
When this Aura enters, exile target nonland permanent an opponent controls until this Aura leaves the battlefield.
Enchanted creature has ward . (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

This creature must be blocked if able.
Whenever this creature attacks, another target Elf you control gets +2/+1 until end of turn.

Vivid — When this creature enters, create X 1/1 green and white Kithkin creature tokens, where X is the number of colors among permanents you control.
Tap three untapped creatures you control: This creature gets +3/+0 and gains flying until end of turn.

Target opponent exiles a creature or planeswalker they control with the greatest mana value among creatures and planeswalkers they control.

, Sacrifice this creature: Destroy target artifact or enchantment.

As long as this creature is equipped, it has first strike and lifelink. (It deals combat damage before creatures without first strike. Damage dealt by it also causes you to gain that much life.)

: Return this card from your graveyard to your hand.

Put a +1/+1 counter on target creature you control, then double the number of +1/+1 counters on that creature.

When this enchantment enters, exile up to one target nonland permanent an opponent controls until this enchantment leaves the battlefield. You gain 2 life.

Shuffle your library, then mill four cards. Put each creature card milled this way onto the battlefield. They gain haste. At the beginning of the next end step, return those creatures to their owner's hand.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target creature gets +3/+2 until end of turn. Create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

Each opponent discards a card. You create a 1/1 black and green Pest creature token with "Whenever this token attacks, you gain 1 life."

Whenever this creature becomes tapped, create a 1/1 blue and black Faerie creature token with flying.

This creature gets +2/+0 as long as you control another Warrior.

Web-slinging (You may cast this spell for if you also return a tapped creature you control to its owner's hand.)
When Spider-Man enters, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.