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.
Mana cost
1
G
Mana value
2
Printings
From
$3.29
EDHREC rank
#4454
Buy
Formats
Modern
Legal
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
7 Jun 2024
Use the mana value of the sacrificed creature as it last existed on the battlefield to determine the value of X.
7 Jun 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.
7 Jun 2024
If Birthing Ritual's ability does trigger but you control no creatures when it tries to resolve, the ability will do nothing.
7 Jun 2024
If one of the revealed creature cards has {X} in its mana cost, X is 0 when determining that card's mana value.