At the beginning of your end step, if you control a creature, look at the top seven cards of your library. Then you may sacrifice a creature. If you do, you may put a creature card with mana value X or less from among those cards onto the battlefield, where X is 1 plus the sacrificed creature's mana value. Put the rest on the bottom of your library in a random order.
(07/06/2024)
If one of the revealed creature cards has in its mana cost, X is 0 when determining that card's mana value.
(07/06/2024)
Use the mana value of the sacrificed creature as it last existed on the battlefield to determine the value of X.
(07/06/2024)
If Birthing Ritual's ability does trigger but you control no creatures when it tries to resolve, the ability will do nothing.
(07/06/2024)
Birthing Ritual's ability checks if you control a creature at the beginning of your end step. If you don't, the ability won't trigger.
