Is Mudbutton Cursetosser legal in Standard, Modern, and Commander?

Mudbutton Cursetosser is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Mudbutton Cursetosser

Q: What type of card is Mudbutton Cursetosser?

Mudbutton Cursetosser is a Creature — Goblin Warlock. Its oracle text reads: "As an additional cost to cast this spell, behold a Goblin or pay {2}. (To behold a Goblin, choose a Goblin you control or reveal a Goblin card from your hand.) This creature can't block. When this creature dies, destroy target creature an opponent controls with power 2 or less."

Creature — Goblin Warlock

As an additional cost to cast this spell, behold a Goblin or pay . (To behold a Goblin, choose a Goblin you control or reveal a Goblin card from your hand.)