: Add .
Put a -1/-1 counter on this creature: Untap this creature.

Draw a card if an opponent has cast a blue or black spell this turn. Spells you control can't be countered this turn. You and permanents you control gain hexproof from blue and from black until end of turn. (You and they can't be the targets of blue or black spells or abilities your opponents control.)

Return up to three target land cards from your graveyard to your hand.
Dredge 3 (If you would draw a card, you may mill three cards instead. If you do, return this card from your graveyard to your hand.)

Whenever this creature deals combat damage to a player, you may have this creature deal 1 damage to target creature that player controls.

: Add .
, : Add , , or .

Flying, haste
Whenever Klauth attacks, add X mana in any combination of colors, where X is the total power of attacking creatures. Spend this mana only to cast spells. Until end of turn, you don't lose this mana as steps and phases end.

: The next time a blue source of your choice would deal damage to you this turn, prevent that damage.

When The Fantastic Four enter and whenever you cast a spell with power, toughness, or mana value 4, choose one that hasn't been chosen this turn.
• Create a 0/4 colorless Wall creature token with defender.
• The Fantastic Four deal 3 damage to each opponent.
• Put two +1/+1 counters on target creature.
• Draw a card.

: Add .
, Sacrifice this land: Destroy target nonbasic land.

Flying
Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature.
: This creature deals 1 damage to target creature.

Hive Mind — Whenever a player mills one or more creature cards, you create a 1/1 black Horror creature token.
, : Target player mills three cards.
Choose a Background (You can have a Background as a second commander.)

(: Add or .)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Whenever a creature deals damage to you, destroy it.

As this artifact enters, choose a creature type.
Creature spells of the chosen type cost less to cast.

Haste
When this creature enters, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control.

Whenever you cast a creature spell, draw a card.

At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.

When Kardur enters, until your next turn, creatures your opponents control attack each combat if able and attack a player other than you if able.
Whenever an attacking creature dies, each opponent loses 1 life and you gain 1 life.

(: Add .)