The individual members of Magnaboss are easier (and more intuitive) to transform than Tripredacus (although I found Ironhide kinda tricksy), but I found Magnaboss harder to combine than Tripredacus. Getting Silverbolt/Prowl to sit in Ironhide properly was a pain when I first tried it. I had to keep disconnecting and reconnecting it again to try and get it right!