The result is infinite mana, and then Goblin Matron can fetch Pashalik Mons for the win
These Job Select cards include White Mages Staff, an Artifact Equipment card costing one white and one mana of any color, which spawns a 1/1 Hero and attaches itself automatically, giving them +1/+1, the Cleric subtype, and giving the owner 1 life when they attack
At the same time, its clear that Wizards of the Coast has been making a multi-year effort to promote diverse representation
This can be anything from attacking with an arbitrarily large creature to some sort of alternate wincon that deals an unreasonable amount of damage
I personally prefer Marisi because it's arguably the best goad commander in MTG
The immediate benefit, however, is that you have access to White's unparalleled removal spells, especially enchantment removal that traditional Red/Black Vampire decks can't easily deal with