Is Custodi Soulcaller legal in Standard, Modern, and Commander?

Custodi Soulcaller is legal in: Legacy, Vintage, Commander.

Custodi Soulcaller

Q: What type of card is Custodi Soulcaller?

Custodi Soulcaller is a Creature — Human Cleric. Its oracle text reads: "Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.) Whenever this creature attacks, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the number of players you attacked this combat."

Creature — Human Cleric

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

Whenever this creature attacks, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the number of players you attacked this combat.

Set Conspiracy: Take the Crown

Rarity Uncommon

Mana Value 3

Artist Winona Nelson

Collector # 15

Scryfall Gatherer