couple of strange choices in there (eg the bunny) but generally looks okay. That being said, I dont play sp at all so probably want someone else's opinion as well
BG looks alright, but could probably me optimized, here is my opinion. - SP benefits on its bonus so running more champs (16/17) is usually a good idea. Also keep in mind chef and sustainer are not real combat champs, so essentially you have 13 champs that can put up a fight, 2 of which (dreamcrushers) that are good deploys but weak runes in general. If the games goes the long way you may even run out of Bane Shift to summon. - Mammoth club is really not that good, especially since you only run one large champion. - Misleading sign is really bad imho, anything in SP's arsenal would probably be better. (Rock trap, mangled totem, even echo chamber, which i dislike) - Since you run lots of runes who deal electricity damage you should consider running Hyaenid Stormreader. Some champs to consider: Feshcaller Mika, Voltaic Slag, Voil Stormfyler. Hope this helps at all