One of the things I found most interesting about these sets was that they were designed to be specifically for multiplayer Limited
Of course, there are plenty of other alternatives in standard and in white color, but the indestructible ability makes it very appealing between its cost and the fact that you can easily sacrifice two token creatures that you've just created with Mondrak
Art like that still makes me feel like the cards themselves are ancient artifacts uncovered in an archaic dig site
Also note that Gandalf will double your triggers for your legendary or artifact stuff entering or leaving the battlefield, like Solemn Simulacrum, Spine of Ish Sah, Ichor Wellspring or Astor, Bearer of Blades or even classics like Godo, Bandit Warlord
Bonus: All 5 Unfinity Partner Commanders Ranked #5
Im the least confident on this one, both its power or how to build, so will focus on the three above to start