Whenever you sacrifice another permanent, put a +1/+1 counter on this creature.

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

Return target creature to its owner's hand.
Draw a card.

Counter target creature spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

When this creature dies, draw a card.

When this creature enters, mill four cards.

Trample
Whenever you cast an instant or sorcery spell, put a +1/+1 counter on this creature.

Whenever this creature deals damage to one or more creatures, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")
At the beginning of each end step, if you sacrificed three or more Clues this turn, you may put a creature card from your hand onto the battlefield.

Trample
When this creature enters, another target Human you control gets +2/+2 until end of turn.

Flying
When this creature enters, if you control another Spirit, you gain 3 life.

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, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")

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.)

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.)

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

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

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

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Flash
Flying

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

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.)

Menace (This creature can't be blocked except by two or more creatures.)
Whenever this creature attacks or blocks, sacrifice another creature or land.

Destroy target creature. Its controller loses 2 life and you gain 2 life.

Haste
Menace (This creature can't be blocked except by two or more creatures.)
When this creature enters, other creatures you control get +1/+0 and gain menace until end of turn.

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)
When you cast this spell, draw a card.
Flying