Is Master Biomancer legal in Standard, Modern, and Commander?

Master Biomancer is legal in: Modern, Pioneer, Legacy, Vintage, Commander.

Master Biomancer

Q: What type of card is Master Biomancer?

Master Biomancer is a Creature — Elf Wizard. Its oracle text reads: "Each other creature you control enters with a number of additional +1/+1 counters on it equal to this creature's power and as a Mutant in addition to its other types."

Creature — Elf Wizard

Each other creature you control enters with a number of additional +1/+1 counters on it equal to this creature's power and as a Mutant in addition to its other types.

Set Ravnica: Clue Edition

Rarity Mythic Rare

Mana Value 4

Artist Willian Murai

Collector # 200

Scryfall Gatherer