Is Caldaia Guardian legal in Standard, Modern, and Commander?

Caldaia Guardian is legal in: Legacy, Vintage, Commander.

Caldaia Guardian

Q: What type of card is Caldaia Guardian?

Caldaia Guardian is a Creature — Human Soldier. Its oracle text reads: "Whenever this creature or another creature you control with mana value 4 or greater dies, create two 1/1 green and white Citizen creature tokens. Blitz {2}{G} (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)"

Creature — Human Soldier

Whenever this creature or another creature you control with mana value 4 or greater dies, create two 1/1 green and white Citizen creature tokens.

Blitz (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)