Working on my power nerfs because aha D&D spellcasters are horrible: do spells that temporarily summon creatures have the possibility of working in this setting, depending on their power level, or is that an auto-nerf like actual dimensional travel?

Also, operating under the assumption that the combination of bringing pets and the size limit means mounts are allowed (correct me if I'm wrong, of course): are there stables or something where characters could house large animals?