Is Inner Sanctum legal in Standard, Modern, and Commander?

Inner Sanctum is legal in: Legacy, Vintage, Commander.

Inner Sanctum

Q: What type of card is Inner Sanctum?

Inner Sanctum is an Enchantment. Its oracle text reads: "Cumulative upkeep—Pay 2 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Prevent all damage that would be dealt to creatures you control. *"Save me from Maraxus," Starke pleaded, "or condemn me to his wrath. Either way, do not ignore me!"*"

Enchantment

Cumulative upkeep—Pay 2 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Prevent all damage that would be dealt to creatures you control.

*"Save me from Maraxus," Starke pleaded, "or condemn me to his wrath. Either way, do not ignore me!"*

Set Weatherlight

Rarity Rare

Mana Value 3

Artist D. Alexander Gregory

Collector # 18

Scryfall