Love all these water pokemon you're using
Even though I would've evolved Slowpoke in Slowking and kept Magmar unevolved. But whatever
OH MY GOD NO WAY, I HAD THAT! Like, last year, and then decided to change 'em.
But Slowbro has a better defense which goes well with Trick Room and Magmortar is just an upgrated Magmar (though Magmar's design is way better).