練達の育種師、エンドレク・サール

あなたがクリーチャー・呪文を１つ唱えるたび、黒の１/１のスラル・クリーチャー・トークンをＸ体戦場に出す。Ｘはその呪文の点数で見たマナ・コストに等しい。
あなたが７体以上のスラルをコントロールしているとき、練達の育種師、エンドレク・サールを生け贄に捧げる。

培育师恩德瑞克萨尔

每当你施放生物咒语时，将X个1/1黑色索尔兽衍生生物放进战场，X为该咒语的总法术力费用。
当你操控七个或更多索尔兽时，牺牲培育师恩德瑞克萨尔。

Endrek Sahr, Master Breeder

Whenever you cast a creature spell, create X 1/1 black Thrull creature tokens, where X is that spell's mana value.
When you control seven or more Thrulls, sacrifice Endrek Sahr, Master Breeder.

Commander Masters

The List

Modern Masters 2015

Whenever you cast a creature spell, put X 1/1 black Thrull creature tokens onto the battlefield, where X is that spell's converted mana cost.
When you control seven or more Thrulls, sacrifice Endrek Sahr, Master Breeder.

Commander 2013

Face-down spells are creature spells, but they have mana value 0.

The second ability is a state trigger. Once it triggers, it won’t trigger again as long as the ability is on the stack. If the ability is countered and the trigger condition is still true, it will immediately trigger again.

When the second ability resolves, Endrek Sahr will be sacrificed regardless of how many Thrulls you control at that time, even if it’s less than seven.