Eine Leere, so rätselhaft wie die Realität selbst.

Kozilek, Verzerrung der Realität

Wenn du diesen Zauberspruch wirkst und falls du weniger als sieben Karten auf deiner Hand hast, ziehe so viele Karten, wie die Differenz beträgt.
Bedrohlich
Wirf eine Karte mit Manabetrag X ab: Neutralisiere einen Zauberspruch deiner Wahl mit Manabetrag X.

Un vide aussi énigmatique que la réalité elle-même.

Kozilek, la Grande Distorsion

Quand vous lancez ce sort, si vous avez moins de sept cartes en main, piochez un nombre de cartes égal à la différence.
Menace
Défaussez-vous d'une carte avec une valeur de mana de X : Contrecarrez un sort ciblé avec une valeur de mana de X.

虚空としか言い様がないその実体。

大いなる歪み、コジレック

あなたがこの呪文を唱えたとき、あなたの手札にあるカードが７枚未満の場合、その差に等しい枚数のカードを引く。
威迫
マナ総量がＸであるカード１枚を捨てる：マナ総量がＸである呪文１つを対象とする。それを打ち消す。

无际曲相寇基雷

当你施放此咒语时，若你的手牌数量少于七张，则抓等同于该差距数量的牌。
威慑
弃一张法术力值为X的牌：反击目标法术力值为X的咒语。

Kozilek, the Great Distortion

When you cast this spell, if you have fewer than seven cards in hand, draw cards equal to the difference.
Menace
Discard a card with mana value X: Counter target spell with mana value X.

Commander Masters

Explorer Anthology 2

If there's an {X} in the mana cost of the card you discard, that X is 0. Any {X} in the mana cost of the target spell will have whatever value was determined for it as the spell was cast.

Kozilek's triggered ability checks to see if you have fewer than seven cards in hand when you cast it. Kozilek is on the stack at this time and not in your hand. If you don't, the ability won't trigger at all. If the ability does trigger, it will check again as it tries to resolve. If you have seven or more cards in hand at that time, the ability won't do anything.

The mana value of a spell doesn't change, even if it's been cast using an alternative cost (such as an awaken cost). For example, the mana value of a Sheer Drop (a spell with mana cost {2}{W}) that's been cast for its awaken cost of {5}{W} is 3.

To activate the last ability, there must be a legal target: a spell on the stack. That target will determine the value of X and the mana value of the card you discard. You can't activate the ability unless you can match the mana value of a spell on the stack to that of a card in your hand.