Shadowborn Demon
Creature — Demon
Flying
When this creature enters, destroy target non-Demon creature.
At the beginning of your upkeep, if there are fewer than six creature cards in your graveyard, sacrifice a creature.
Lucas Graciano
Jumpstart 2022 (J22)
• #464Rulings
Shadowborn Demon’s enters-the-battlefield ability is mandatory. If you control the only non-Demon creature, you must choose it as the target.
(wotc • 2013-07-01)
The last ability checks whether you have fewer than six creature cards in your graveyard when it would trigger. If you have six or more, it won’t trigger at all. The ability will check again when it tries to resolve. If at that time you have six or more, the ability won’t do anything.
(wotc • 2013-07-01)
Rulings
Shadowborn Demon’s enters-the-battlefield ability is mandatory. If you control the only non-Demon creature, you must choose it as the target.
(wotc • 2013-07-01)
The last ability checks whether you have fewer than six creature cards in your graveyard when it would trigger. If you have six or more, it won’t trigger at all. The ability will check again when it tries to resolve. If at that time you have six or more, the ability won’t do anything.
(wotc • 2013-07-01)