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

Create two 2/2 black Zombie creature tokens.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

All creatures get -2/-2 until end of turn.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Whenever this creature attacks, tap target creature defending player controls.

This creature attacks each combat if able.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Target opponent mills thirteen cards.
: Put this card from your graveyard onto the battlefield transformed. Activate only as a sorcery.

Flash
When this creature enters, you may discard a land card. If you do, create a 2/2 green Wolf creature token.

Whenever this creature enters or attacks, if you have no cards in hand, this creature deals 2 damage to any target.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

When this creature enters, create a 1/1 white Spirit creature token with flying.
, Discard two cards: Return this card from your graveyard to the battlefield tapped.

At the beginning of each combat, creatures you control gain first strike until end of turn if a creature you control has first strike. The same is true for flying, deathtouch, double strike, haste, hexproof, indestructible, lifelink, menace, reach, skulk, trample, and vigilance.

Haste
, Discard a card: Draw a card.

+1: Choose up to two target creatures. Until your next turn, whenever either of those creatures deals combat damage, you draw a card.
−2: Tap up to two target nonland permanents. They don't untap during their controller's next untap step.
−7: Draw three cards. You get an emblem with "You may cast spells from your hand without paying their mana costs."

Flying, haste
If a source would deal damage to you, it deals double that damage to you instead.
If a source would deal damage to this creature, it deals double that damage to this creature instead.

Flash (You may cast this spell any time you could cast an instant.)
Reach (This creature can block creatures with flying.)

Flying
Delirium — Sacrifice another creature: This creature gets +2/+1 until end of turn. Activate only if there are four or more card types among cards in your graveyard.

Flying
This creature gets -1/-1 for each card in your hand.
, Discard three cards: Return this card from your graveyard to the battlefield tapped.

Counter target spell.
Investigate three times. (To investigate, create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")

Whenever this creature enters or transforms into Ulrich of the Krallenhorde, target creature gets +4/+4 until end of turn.
At the beginning of each upkeep, if no spells were cast last turn, transform Ulrich of the Krallenhorde.

Sage of Ancient Lore's power and toughness are each equal to the number of cards in your hand.
When this creature enters, draw a card.
At the beginning of each upkeep, if no spells were cast last turn, transform this creature.

: Put target card from your graveyard on the bottom of your library.

Flying
Whenever a player casts an instant or sorcery spell that targets only this creature, that player copies that spell for each other creature they control that the spell could target. Each copy targets a different one of those creatures.

Flying
Whenever you cast an instant or sorcery spell, create a 1/1 blue Human Wizard creature token. Then if you control three or more Wizards, transform this creature.

Put target creature card from a graveyard onto the battlefield under your control. That creature is a black Zombie in addition to its other colors and types.

Reach
Delirium — When Ishkanah enters, if there are four or more card types among cards in your graveyard, create three 1/2 green Spider creature tokens with reach.
: Target opponent loses 1 life for each Spider you control.

Flying
, Discard two cards: Return this card from your graveyard to the battlefield tapped.

Flying
Sacrifice three other creatures: Transform this creature.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Draw three cards, untap up to two lands, then discard a card.

When this creature enters, you may return target creature card with mana value 3 or less from your graveyard to your hand.
(Melds with Graf Rats.)

At the beginning of each upkeep, if no spells were cast last turn, transform this creature.

Flash
Flying, vigilance
When Archangel Avacyn enters, creatures you control gain indestructible until end of turn.
When a non-Angel creature you control dies, transform Archangel Avacyn at the beginning of the next upkeep.

First strike
When this creature enters, you may search your library for a legendary card, reveal it, put it into your hand, then shuffle.

Alchemist's Greeting deals 4 damage to target creature.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

As an additional cost to cast this spell, discard a card and sacrifice a creature.
Two target creatures each get -13/-13 until end of turn.

Destroy target creature with power 4 or greater.
Investigate.(Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")

Enchant creature
When this Aura enters, create a 2/2 green Wolf creature token.
Enchanted creature gets +2/+2.