Is Embermouth Sentinel legal in Standard, Modern, and Commander?

Embermouth Sentinel is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Embermouth Sentinel

Q: What type of card is Embermouth Sentinel?

Embermouth Sentinel is an Artifact Creature — Chimera. Its oracle text reads: "When this creature enters, you may search your library for a basic land card, reveal it, then shuffle and put that card on top. If you control a Dragon, put that card onto the battlefield tapped instead."

Artifact Creature — Chimera

When this creature enters, you may search your library for a basic land card, reveal it, then shuffle and put that card on top. If you control a Dragon, put that card onto the battlefield tapped instead.

Set Tarkir: Dragonstorm

Rarity Common

Mana Value 2

Artist Stephanie Cheung

Collector # 242

Scryfall Gatherer