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.
Face-down spells are creature spells, but they have mana value 0.
25-09-2006
wotc
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.
25-09-2006
wotc
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.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.