mtg purple cards Pentapus | Avatar: The Last Airbender Eternal Purple mana idea : r/custommagic

The Mardu colors also give you access to the best removal and protection spells to keep your momentum going

Tomb of Annihilation doesnt need to go in your deck, and venture into the dungeon effects are plentiful, meaning you can conjure The Atropal almost as an afterthought

Storage Tray for Accessories: Dice, counters, and tokens have a dedicated space

In Vintage, you can even grab a Mox or Black Lotus

So many big permanents now are about ETBs and things though that dumping mana into this unless it's just to turn it into a huge beater kind of loses something

Rhythm of the Wild lets your uncounterable commander attack immediately, which is huge for commanders like Gishath, Sun's Avatar or Voja, Jaws of the Conclave