Sea Gate Restoration / Sea Gate, Reborn Like Mulldrifter, Sea Gate Restoration gets a spot due to the flexibility it provides
Some commons are worth money, especially specific foils or older cards that get played in formats like Pauper
When you play this spell, you can show a reply to your post and put the named card into your hand as long as you own it
What's great about this planeswalker commander is there are all sorts of avenues to go down, you've got trample and haste being relevant keywords you want on most of your creatures, burn damage providing a win con if you can make Boo (or your other creatures) big enough, and a renewable token that makes a great target for sacrifice effects
Pull it out of the garbage and dust it off with Daretti, Scrap Savant or Goblin Welder
Before anything else lets take a look at them: Initial Impression Im very encouraged by these initial designs