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PM20 #94p

Cavalier of Night

Creature — Elemental Knight
Cavalier of Night
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Cavalier of Night

Lifelink When this creature enters, you maysacrificeanother creature. When you do,destroytarget creature an opponent controls. When this creature dies, return target creature card with mana value 3 or less from your graveyard to the battlefield.

Card Information

Color: B
Identifies: B
Cost:
CMC: 5
Types: Creature
Subtypes: Elemental Knight
P/T: 4 / 5
Rarity: mythic
Languages:
Layout: normal
Rank:
#5,234
Saltiness:
0.76 / 4.0

Official Rulings

2019-07-12
Cavalier of Night’s enters-the-battlefield ability goes on the stack without a target. While that ability is resolving, you may sacrifice another creature. When you do, the reflexive triggered ability triggers and you pick a target creature to be destroyed. This is different from effects that say “If you do . . .” in that players may take actions after you’ve sacrificed the creature but before the target creature is destroyed.
2019-07-12
If a card in a graveyard has {X} in its mana cost, X is considered to be 0.
2019-07-12
If a creature card with mana value 3 or less becomes a copy of Cavalier of Night, its last ability can target itself when it dies.
2019-07-12
While resolving Cavalier of Night’s enters-the-battlefield ability, you can’t sacrifice more than one creature.