Game Changers for Vivi Teval, the Balanced Scale Teval, the Balanced Scale offers fantastic value, especially for a precon commander
Terminus is one of the cheapest ways to deal with a problematic board since its miracle cost is a single white mana
Lorcana The First Chapter Booster Pack 7 In this pack, we got: Commons: Hercules True Hero, Peter Pan Never Landing, Tinker Bell Peter Pan's Ally, Timon Grub Rustler, Abu Mischievous Money, and Mufasa King of the Pride Lands Uncommons: Tigger Wonderful Thing, Simba Rightful Heir, and Be Our Guest Rare or above: Elsa Spirit of Winter (Legendary) and Let It Go (Rare) Foil: Prince Eric Dashing and Brave (Common) The Elsa Spirit of Winter Super Rare is a great pull in this pack
Kill all your creatures
There are over 30,000 different decks for it registered on EDHREC, the second-highest behind only Artifact decks
For example, the white Mana Noble Heritage and black Mana Criminal background both grant new triggered abilities that fit the colours playstyle along with unlocking white and black Mana cards for their chosen deck, respectively