This is one of those cards that can be amazing in just the right situation, but situational cards rarely have an impact in the format
When a Masters set has a high expected value, it's a lot easier to justify spending $45 on a booster draft or $200 on a booster box because even though the up-front cost is high, you know that you'll get some of that money back in the form of cards you can use to build decks or, if you don't get the specific cards you need, trade or sell to get the cards you do need for your decks
I do not take into account cards that generate tokens like spawn or scions, but arent eldrazi themselves
Nashi is a must-have for any ninjutsu-themed Commander deck, but it also just makes a good addition to any deck with black in the color identity
Imperious Perfect, Leaf-Crowned Visionary, Canopy Tactician, and Elvish Clancaller are popular creature cards that provide anthem effect for elves, which can steadily elevate Glistener Elfs power for more infect damage
It often costs far less than 6 mana despite being an incredibly powerful threat, and its a devil to interact with between the immense ward cost that makes it hard to target and the triggered ability that makes it impossible to block
