Since returning the Nightmare to your hand is part of the activation cost, there is no opportunity for your opponent to destroy it
Zoodiac Tri-Brigade combos The core one-card Fraktall combo What makes Zoodiac Tri-Brigade powerful is the ability to put out a strong field using just a single card
It doesnt really help with enter effects because they will enter face down, and it turns off whatever you tried to protect
It's usually a glow on the card, acting as a coat over it, which generally makes it weigh a bit more than a regular foil card
Along with this, at the beginning of your end step, you'll create a 0/0 red Gremlin artifact creature with X +1/+1 counters on it, where X is the number of differently named artifact tokens you control
It can be found in the Mega Gyarados pack from the MegaRising set