Sigils of Ruin Cards
And while there certainly are expensive upgrades you can make to either of these decks, they both feel strong, think-y, aggressive in their own ways, and will provide many, many games of Commander where you should feel fairly even-toed with everyone else at the table
it sucks that you lose the planeswalker if you have to deal with a must-kill threat
2 Light-Paws, Emperor's Voice A new option for a Mono-White aura deck, Light-Paws, Emperor's Voice is a stellar commander option and perhaps one of the strongest Mono-White commanders in the game
Two of the easiest upgrade paths would be to head toward a big artifact / reanimator strategy with cards like Goblin Welder, Daretti, Scrap Savant, and other huge artifact finishers like Wurmcoil Engine, or play a token- / Thopter-themed deck with the help of cards like Sai, Master Thopterist, Pia and Kiran Nalaar, and friends