Is Parallax Nexus legal in Standard, Modern, and Commander?

Parallax Nexus is legal in: Legacy, Vintage, Commander.

Parallax Nexus

Q: What type of card is Parallax Nexus?

Parallax Nexus is an Enchantment. Its oracle text reads: "Fading 5 (This enchantment enters with five fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.) Remove a fade counter from this enchantment: Target opponent exiles a card from their hand. Activate only as a sorcery. When this enchantment leaves the battlefield, each player returns to their hand all cards they own exiled with it."

Enchantment

Fading 5 (This enchantment enters with five fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)

Remove a fade counter from this enchantment: Target opponent exiles a card from their hand. Activate only as a sorcery.

When this enchantment leaves the battlefield, each player returns to their hand all cards they own exiled with it.

Set Nemesis

Rarity Rare

Mana Value 3

Artist Greg Staples

Collector # 63

Scryfall