Is Ekundu Cyclops legal in Standard, Modern, and Commander?

Ekundu Cyclops is legal in: Legacy, Vintage, Commander, Pauper.

What type of card is Ekundu Cyclops?

Ekundu Cyclops is a Creature — Cyclops. Its oracle text reads: "If a creature you control attacks, Ekundu Cyclops also attacks if able."

Creature — Cyclops

If a creature you control attacks, Ekundu Cyclops also attacks if able.

Set Mirage

Rarity Common

Artist Robert Bliss

Creature Commander Pauper Legacy