Players planning on running white would be wise to grab it in their draft
This is in large part because of the presence of Eldrazi Temple and Ugins Labyrinth
It also has a built-in self-reanimation effect, which can change combat math at instant speed, though at a hefty cost
Traveling Chocobo's last ability affects a permanent's own "enters" triggered abilities (as long as it's a land or Bird you control) as well as other triggered abilities that trigger when a land or Bird you control enters the battlefield
The effects of this on the secondary market - where the vast majority of players get their cards because you can just buy the singles you want instead of ravenously opening boosters and hoping for the best - is extraordinary
Released in March of the Machine (yes, finally not a Tolkien inspiration), for five generic mana and two red mana, Etali, Primal Conqueror is a 7/7 legendary Elder Dinosaur with an extremely spicy enter the battlefield effect