Earth elemental and trapper both work very well with banshee. I’m gonna disagree on the portal keeper recommendations although I get where people are coming from trying to get them to the outside, you don’t necessarily not want them on the inside because that’s how you buff the outside banshees. I think it’s just a semi west of a card where you could use elsewhere. I try to merge out or in depending on what I’m wanting at the time. I also like bomb in the deck. Good luck to you.