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

Parallax Dementia is legal in: Legacy, Vintage, Commander, Pauper.

Parallax Dementia

Q: What type of card is Parallax Dementia?

Parallax Dementia is an Enchantment — Aura. Its oracle text reads: "Enchant creature Fading 1 (This enchantment enters with one fade counter on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.) Enchanted creature gets +3/+2. When this Aura leaves the battlefield, destroy enchanted creature. That creature can't be regenerated."

Enchantment — Aura

Enchant creature

Fading 1 (This enchantment enters with one fade counter on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)

Enchanted creature gets +3/+2.

When this Aura leaves the battlefield, destroy enchanted creature. That creature can't be regenerated.

Set Nemesis

Rarity Common

Mana Value 2

Artist Eric Peterson

Collector # 62

Scryfall Gatherer