This can easily push Vincent, or any of your creatures, into the realm of huge threats
Then you can lean into making Jolene a threat that can kill players with commander damage, or just play big, splashy finishers to bludgeon your opponents into submission
The new set features 20 of these doubled lands/spells, and I love them so much Ive upended one of my cubes (a hand-selected collection of draftable cards) to accommodate them
Blue and green can potentially untap him several times in a single turn, and all three colors offer enough proliferate and counter-doubling to potentially ultimate a planeswalker when you first summon it (and thats without a Doubling Season)
It is a little mana and colour intense but as a finisher in white weenie that is not much of an issue
Otherwise, how many legendary creatures are you planning to run