Is Concerted Effort legal in Standard, Modern, and Commander?

Concerted Effort is legal in: Modern, Legacy, Vintage, Commander.

Concerted Effort

Q: What type of card is Concerted Effort?

Concerted Effort is an Enchantment. Its oracle text reads: "At the beginning of each upkeep, creatures you control gain flying until end of turn if a creature you control has flying. The same is true for fear, first strike, double strike, landwalk, protection, trample, and vigilance."

Enchantment

At the beginning of each upkeep, creatures you control gain flying until end of turn if a creature you control has flying. The same is true for fear, first strike, double strike, landwalk, protection, trample, and vigilance.

Set Ravnica: City of Guilds

Rarity Rare

Mana Value 4

Artist Michael Sutfin

Collector # 8

Scryfall Gatherer