Match your Game Changer picks to your commander's abilities
Ill resist going on the full rant, but part of the beauty of Cube is that if something is performing so well that you would want a hate card, you can really easily remove the problematic cards instead of making the gameplay worse
Now, how many of them do you actually see
For the most part, this is the only color pair that cares about artifacts, so you'll be able to get the key cards from the deck mostly unimpeded
If you go down this road, token support pieces like Stridehangar Automaton and Worldwalker Helm are must-plays
Solitude can take care of many threats that are just too big for Prismatic Ending, most notably Murktide Regent but also things like Emrakul, the Aeons Torn, and so the two work very well together