That was easy. (Leo/Elise BHB)
What about you guys?
It was freaking annoying. I had to swap out Valentine Hector for Performance Azura. And the orbs just got me three stars when I could actually summon on the color I wanted to summon on.
But yeah, I used Legendary Ike, Brave Lucina, Performance Azura, and Arvis.
A friend was able to take out Infernal by baiting with her SYTiki. Since mine lacked Iotes, and Myrrh had it (and DC) instead, I used Myrrh, and applied some spur/drives/a Goad from FMorgan (who's there to take on Leo) and Elincia. Also brought a Fortify Dragons from Ninian.
Managed to bait Elise instead of the bow, which was pretty pivotal.
Easy? Might as well call all these events Bond Hero Curb-Stomp Battles
I removed all passive and trigger skills, and went only with Corrin's +res Dark Breath and Marth's refined falchion for offense, and a weaponless Azura and a weaponless Bridal Lyn only with the stantard rehabilitate and sing, to try and make my stantard "as F2P as possible" guides.
(In case you ask, I actually am F2P, but I have been playing since day one and I have had an incredible amount of good luck when it comes to summoning, even on the yolo summons on uninteresting banners, with the last one having given me a free Flier Olivia, to the point that even my only three five star pitybreakers in my life, Abel, -atk Celica and Saber, have been great for my teams, as skill fodder for Effie (Brave Lance), Xander (Distant Defense) and Corrin (Shield Pulse) respectively)
And even then, it STILL was easy.