Is Siege-Gang Lieutenant legal in Standard, Modern, and Commander?

Siege-Gang Lieutenant is legal in: Legacy, Vintage, Commander.

Siege-Gang Lieutenant

Q: What type of card is Siege-Gang Lieutenant?

Siege-Gang Lieutenant is a Creature — Goblin. Its oracle text reads: "Lieutenant — At the beginning of combat on your turn, if you control your commander, create two 1/1 red Goblin creature tokens. Those tokens gain haste until end of turn. {2}, Sacrifice a Goblin: This creature deals 1 damage to any target."

Creature — Goblin

Lieutenant — At the beginning of combat on your turn, if you control your commander, create two 1/1 red Goblin creature tokens. Those tokens gain haste until end of turn.

, Sacrifice a Goblin: This creature deals 1 damage to any target.