Djinn: For Rune vs. Elincia, You have to ask yourself these questions:
- Does Rune's magic ID ignore evade. There is no real evidence to say it does, and the only reason to think so is extrapolating from other things, as NEB pointed out.
- Does Rune's ID hit Magic (as it does in his game, apparently), or Mdef (FE's magic status resistance stat). Elincia's Res is like -50% status check odds or something, so that wouldn't go over well for Rune.
- If Rune's ID does check FE Magic, is Elincia's good enough to dodge it turn 1. NEB seems to think that it probably would, but I have no idea how PS4 status actually works.
Rune's speed is also so close to average that you may tiebreak for Elincia's Range, but I don't know about that. Suffice to say if you think Elincia is good enough to beat Cthulhu than her stats are probably good enough to take Rune.