The confirmed Universes Beyond sets are Final Fantasy set and Marvel's Spider-Man set , with one currently unnamed set left to be announced later in the year
But that all began to change as Ruby Storm surfaced
They have a similar color intensity and brightness to the lands from Unhinged , and the large mana pip in the center helps emphasize each color further
Numerically, this usually works out to be between 6-10 cards for me, especially if my commander has black in their color identity, and this seems to be a fairly common range for many other players as well
Modified Matters Since backup adds +1/+1 counters to creatures, that counts as modified, and there are some sweet cards from Kamigawa: Neon Dynasty and Neon Dynasty Commander worth considering for the deck
Any of these makes an excellent first box