Is Highcliff Felidar legal in Standard, Modern, and Commander?

Highcliff Felidar is legal in: Legacy, Vintage, Commander.

Highcliff Felidar

Q: What type of card is Highcliff Felidar?

Highcliff Felidar is a Creature — Cat Beast. Its oracle text reads: "Vigilance When this creature enters, for each opponent, choose a creature with the greatest power among creatures that player controls. Destroy those creatures. *Once the felidar has marked you as prey, there's no point in running.* Power/Toughness: 5/5"

Creature — Cat Beast

Vigilance

When this creature enters, for each opponent, choose a creature with the greatest power among creatures that player controls. Destroy those creatures.

*Once the felidar has marked you as prey, there's no point in running.*

Power/Toughness: 5/5

Set Game Night 2019

Rarity Mythic Rare

Mana Value 7

Artist Kimonas Theodossiou

Collector # 1

Scryfall