If you are utilizing Powerstones, it's best to use them for mana before your other mana producers, since restricted colorless mana is much more narrow in use compared to what lands and mana rocks can make
This new set, Azurite Sea , features quite a few cards that have the ability to truly impact the game
Kurbis, Harvest Celebrant nonfoils $1 As a Midnight Hunt Commander card, theres a lot of them out there, but so so good with the theme
An EDH deck led by Vivi probably isn't going to want too many creature spells, but it's fairly likely that if you play this card, you'll also throw a few wizards or shamans in there, which will synergize nicely with all the non-creature spells you're throwing around
Tiny Tactician is no slouch either with the ability to help you draw deeper into your deck and being 3 Lore lets you curve into Shift 4 for big Tinker Bell
If The Wandering Minstrel would enter the battlefield at the same time a land you control would enter the battlefield tapped, that land still enters the battlefield tapped