Is Nyxborn Hydra legal in Standard, Modern, and Commander?

Nyxborn Hydra is legal in: Modern, Legacy, Vintage, Commander, Pauper, Historic.

Nyxborn Hydra

Q: What type of card is Nyxborn Hydra?

Nyxborn Hydra is an Enchantment Creature — Hydra. Its oracle text reads: "Bestow {X}{G}{G} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.) Reach, trample This permanent enters with X +1/+1 counters on it. Enchanted creature gets +1/+1 for each +1/+1 counter on this Aura and has reach and trample. Power/Toughness: 0/1"