Is Rampaging Aetherhood legal in Standard, Modern, and Commander?

Rampaging Aetherhood is legal in: Legacy, Vintage, Commander.

What type of card is Rampaging Aetherhood?

Rampaging Aetherhood is a Creature — Snake Hydra. Its oracle text reads: "Trample, ward {2} At the beginning of your upkeep, you get an amount of {E} (energy counters) equal to this creature's power. Then you may pay one or more {E}. If you do, put that many +1/+1 counters on this creature."

Rampaging Aetherhood

Creature — Snake Hydra

Trample, ward

At the beginning of your upkeep, you get an amount of (energy counters) equal to this creature's power. Then you may pay one or more . If you do, put that many +1/+1 counters on this creature.