Flying, lifelink, protection from Vampires
Katilda's power and toughness are each equal to the number of permanents you control that are Spirits and/or enchantments.
Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Training (Whenever this creature attacks with another creature with greater power, put a +1/+1 counter on this creature.)
Whenever you cast a creature spell, create a 1/1 green and white Human Soldier creature token with training.

Target player draws two cards and loses 2 life.

Flash
Flying
When this creature enters, you may return another creature you control to its owner's hand.

When this creature enters, if you control another Human, draw a card.

You may look at the top card of your library any time.
You may play lands from the top of your library.
Coven — As long as you control three or more creatures with different powers, you may cast creature spells from the top of your library.

Trample, haste
If it's neither day nor night, it becomes day as this creature enters.
Whenever day becomes night or night becomes day, put a +1/+1 counter on target creature you control.

Vigilance
Whenever this creature enters or attacks, exile a card from a graveyard.
Spells you cast cost less to cast for each card type they share with cards exiled with this creature.

Exile the top thirteen cards of your library, then search your library for a card. Put that card into your hand, then shuffle.

Flying
This creature can't block.
Whenever this creature deals combat damage to a player, create a Blood token.
, Sacrifice two Blood tokens: Return this card from your graveyard to the battlefield.

Whenever you cast an instant or sorcery spell, create a 2/2 black Zombie creature token with decayed. (It can't block. When it attacks, sacrifice it at end of combat.)
At the beginning of your upkeep, if you control three or more creature tokens, you may transform this creature.

When this creature enters, mill three cards, then you may return a land card from your graveyard to your hand. (To mill three cards, put the top three cards of your library into your graveyard.)

Exploit (When this creature enters, you may sacrifice a creature.)
When this creature exploits a creature, scry 1, then draw a card. (To scry 1, look at the top card of your library, then you may put that card on the bottom.)

At the beginning of your end step, put an invitation counter on this enchantment. If you attacked with two or more creatures this turn, draw a card. Otherwise, create a 1/1 white Human creature token. Then if this enchantment has three or more invitation counters on it, transform it.

When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.

Flying
Whenever this creature enters or attacks, exile a card from a graveyard.
You may look at the top card of your library any time.
Once each turn, you may cast a spell from the top of your library if it shares a card type with a card exiled with this creature.

Equipped creature has flying and lifelink.
Whenever equipped creature dies, you may pay X life, where X is its power. If you do, draw X cards.
Equip

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

When this creature enters, put a +1/+1 counter on each of up to two target creatures.

Flying, haste
At the beginning of combat on your turn, up to two target creatures you control each get +1/+0 until end of turn.

Each creature you control with toughness greater than its power assigns combat damage equal to its toughness rather than its power.

As an additional cost to cast this spell, sacrifice a creature.
Enchant creature
You control enchanted creature.
Enchanted creature gets +1/+1.

Flying
Whenever you cast a noncreature spell, create an X/X red Dragon Illusion creature token with flying and haste, where X is the amount of mana spent to cast that spell. Exile that token at the beginning of the next end step.

Other tapped creatures you control have deathtouch.
Other untapped creatures you control have hexproof.
, : Untap another target creature or land you control.

, Discard a card: This creature gains indestructible until end of turn. Tap it. Then if there are four or more creature cards in your graveyard, transform this creature. (Damage and effects that say "destroy" don't destroy it.)

Look at the top four cards of your library. Put two of those cards into your hand and the rest into your graveyard.

Whenever a Human you control dies, draw a card.
Whenever a creature you control with a +1/+1 counter on it dies, you gain 2 life.

+1: Look at the top card of your library. You may reveal that card and put it into your hand. If you do, you lose life equal to its mana value.
−2: Create a 2/3 black Vampire creature token with flying and lifelink.
−7: Sorin deals 13 damage to any target. You gain 13 life.

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
When this creature enters, exile up to one target card from a graveyard. If a creature card was exiled this way, each opponent loses 2 life and you gain 2 life.

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.

Whenever this creature or another creature you control dies, put a +1/+1 counter on target creature you control.

Trample
This creature enters with a +1/+1 counter on it for each creature that died this turn.

When this creature enters, exile up to one target card from a graveyard.
: Add one mana of any color.

At the beginning of your end step, create a 1/1 red Human creature token. Then if you control exactly thirteen permanents, you may sacrifice this enchantment. When you do, it deals 7 damage to any target.

Reach
When this creature dies, create a 1/2 green Spider creature token with reach.

Exploit (When this creature enters, you may sacrifice a creature.)
When this creature exploits a creature, return target instant or sorcery card from your graveyard to your hand.