mtg esper commander deck OBSCURA White/Blue/Black Mana Builder Starter Pac – CommanderComplete creatures you control that are white Sen Triplets Commander Deck MTG

They allowed you to tap for one colorless Mana without any pain at all, but if you were to tap it for either color of colored Mana, it dealt one damage to you

Mystic Enforcer could easily be slipped into more "normal" builds than its cheaper brethren for several reasons

This is where Narset, Jeskai Waymaster comes in

Anna, True-Hearted, is a powerful quester that can swing big turns if you can get a lot of cards on the board at once

Once The Locust God came into the picture, as a win condition instead of being the draw engine, I imagine it was easier for Wheel of Fortune decks to eclipse what Arjun was looking to do