Is Hollow Warrior legal in Standard, Modern, and Commander?

Hollow Warrior is legal in: Legacy, Vintage, Commander.

Hollow Warrior

Q: What type of card is Hollow Warrior?

Hollow Warrior is an Artifact Creature — Golem Warrior. Its oracle text reads: "This creature can't attack or block unless you tap an untapped creature you control not declared as an attacking or blocking creature this combat. (This cost is paid as attackers or blockers are declared.) *Though it moves like a living thing, anyone can tell it lacks a soul—not to mention mercy.* Power/Toughness: 4/4"

Artifact Creature — Golem Warrior

This creature can't attack or block unless you tap an untapped creature you control not declared as an attacking or blocking creature this combat. (This cost is paid as attackers or blockers are declared.)

*Though it moves like a living thing, anyone can tell it lacks a soul—not to mention mercy.*

Power/Toughness: 4/4

Set Prophecy

Rarity Uncommon

Mana Value 4

Artist Adam Rex

Collector # 138

Scryfall