Use Sapphire-like smoothing or low-curve cantrips so your deck always does the thing on time
Gavin, the lead set designer, noticed that my White Auracite design from the Commander set fulfilled our mechanical needs and had a fairly high-profile concept, so we swiped it (and got an extra mana added to its cost somewhere along the way)
Eye of Nidhogg is great for keeping opponents life totals go down, and really helps Yshtola in this build as it triggers both of her abilities
I have nothing against Star Wars or Marvel
13 Maleficent, Monstrous Dragon Market Price: Normal: $32.04 / Foil: $73.15 The mighty dragon is some of the best removal in the game, making it a staple in any Ruby deck that seeks to remove characters quickly and efficiently
A cheap enough card that it should be looked at, but it might end up being closer to the 105th card in a deck list