Is Armor Thrull legal in Standard, Modern, and Commander?

Armor Thrull is legal in: Legacy, Vintage, Commander, Pauper.

What type of card is Armor Thrull?

Armor Thrull is a Creature — Thrull. Its oracle text reads: "{T}, Sacrifice Armor Thrull: Put a +1/+2 counter on target creature."

Creature — Thrull

, Sacrifice Armor Thrull: Put a +1/+2 counter on target creature.

Set Fallen Empires

Rarity Common

Artist Pete Venters

Creature Commander Pauper Legacy