Is Joraga Warcaller legal in Standard, Modern, and Commander?

Joraga Warcaller is legal in: Modern, Legacy, Vintage, Commander.

Joraga Warcaller

Q: What type of card is Joraga Warcaller?

Joraga Warcaller is a Creature — Elf Warrior. Its oracle text reads: "Multikicker {1}{G} (You may pay an additional {1}{G} any number of times as you cast this spell.) This creature enters with a +1/+1 counter on it for each time it was kicked. Other Elf creatures you control get +1/+1 for each +1/+1 counter on this creature."