Is Bloodcurdler legal in Standard, Modern, and Commander?

Bloodcurdler is legal in: Legacy, Vintage, Commander.

Bloodcurdler

Q: What type of card is Bloodcurdler?

Bloodcurdler is a Creature — Horror. Its oracle text reads: "Flying At the beginning of your upkeep, mill a card. Threshold — As long as seven or more cards are in your graveyard, this creature gets +1/+1 and has "At the beginning of your end step, exile two cards from your graveyard." Power/Toughness: 1/1"

Creature — Horror

Flying

At the beginning of your upkeep, mill a card.

Threshold — As long as seven or more cards are in your graveyard, this creature gets +1/+1 and has "At the beginning of your end step, exile two cards from your graveyard."

Power/Toughness: 1/1

Set Odyssey

Rarity Rare

Mana Value 2

Artist Adam Rex

Collector # 116

Scryfall