Of the things to double up with Solphim, we have Repercussion, Blasphemous Act (and the two together), Lightmine Field, and Acidic Soilall favorite cards in my You Did This to Yourself deck
And you might want to find room for Teferi's Protection, Unbreakable Formation and other anti board wipes
But there are other budget tutors that still work well
While mods are the most efficient way to open up packs quickly, there are also a few things that players can do without the use of mods that speed things up
Miracle tends to be too swingy for many Cubes, but the cards full cost being about right makes this one a compelling consideration, assuming that there are more powerful things than casting cheap 5/5s going on in your Cube
It also generates you a Treasure token as long as one of your creatures has successfully dealt combat damage to your opponent