mtg commander decks crimson vow Innistrad: Vow/Commander except the copy is a 1/1 Spirit in addition to its other types Magic: The Gathering Innistrad Crimson

Force of Vigor gets around any mana costs by letting you exile a green card from your hand instead of paying for its mana cost, much like the original Force of Will counterspell from Alliances

This is still a powerful card, and it's possible it might see some niche play in the sideboards of blue decks that don't have access to board wipes

This is very relevant because you need characters in order to win the game the most common way to win is through accruing 20 lore

Similar to cards like Platinum Angel, you need to make sure you can protect it once its in play, but this gives control decks a way to close out games without relying on Omniscience, which everyone is prepared for these days