Despite an impressive start to this new Moonbreon's TCG career, it quickly lost value, dropping out of the $300 range after starting above $350
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.) If the target creature is an illegal target as Persistent Constrictor's first ability tries to resolve, it won't resolve and none of its effects will happen
No you cannot re-disguise a card once it's on the battlefield
However, they are vulnerable to repeated board wipes such as Wrath of God, so it's recommended that you add ways to protect your board with cards like Eldrazi Monument, Rootborn Defenses, and Heroic Intervention
The likes of Mew, Snorlax, Zapdos, and later, Alakazam, all take the spotlight across the pack and box art and the promo cards