Originally Posted by
Winthur
Be mindful however that Morgana has a lot of innate risk to her because if you miss any bindings you're pretty useless in the laning phase (well, or at least - not contributing properly; sure a spell shield is useful, but it's only good to stop engages and not at all to provide sustain). You still have a lot of utility and not as catastrophic issues as Blitzcrank (whom you render completely obsolete) but be mindful that on paper she loses to any poke supports.
Of course, the best part about the trio is the fact that they're very good at catching people and that can turn even a bad lane around. Thresh, for one, is, on paper, outpoked by Sona, Nami, Karma or Zyra, but there's the hook and he still has a ton of unique utility.
So ya, Thresh/Leo/Morg, but IMHO Sona and maybe Annie (unless they gutted her too hard) are underrated gems and both simple to play.