Its a simple but effective way to convert tokens into mana advantage without slowing down your game plan
Advanced Search Sets Random Syntax Showing 1-2 of 2 cards: "set name: FIN, subtype: Assassin, colors: includes B" Display: Card Small Sorted By: Card Name Ascending Showing 1-2 of 2 cards: "set name: FIN, subtype: Assassin, colors: includes B" Reno and Rude Vincent Valentine Advanced Search English
However, the big addition here from Crimson Vow is Voice of the Blessed
Until Double Masters 2 , this hadnt seen a reprint since 2016
It can't be the target of the triggered ability of Mystic Sanctuary
You need to make sure to correctly evaluate what duals you need, how many of each color, and what lands work best with one another when trying to build your mana base