Legality depends on the tournament format -- Waylaying Pirates can be legal in some formats and banned or restricted in others
Because of this card and to a lesser extent, Rayquaza VMax, "Evolving Skies" will likely maintain this price point for a while, and the set could eventually go over $2000 if Umbreon VMax copies continue to become harder for players to find
Mardu is great at pitching cards into the graveyard with various Entomb and Faithless Looting effects, so getting a strong creature into the yard and reanimating it should be no problem
Sauron, the Dark Lord boasts remarkable abilities, sure to draw the ire of the table - but with built-in protection to stave off their advances
There are more than enough sticker sheets with the right words on them for this creature to always be able to produce at least 4 mana if you want it to
Gives you a mix of high end packs and regular ones