User blog comment:Mystic Monkey/Another hypothetical question/@comment-167456-20130112164035/@comment-679780-20130113180815

Well yeah, it's useful for situations in battles when you want victory to hurry up or to assure victory if it looks bleak, all at the cost for more MP than the usual magic costs. Plus It's fun to summon and enjoy the cutscene of some god ripping the place up. If Sonic Chronicles had Summonings then we wouldn't have to rely so much on broken turn-based order and odd screen-tapping actions to assure a sucsessful attack.

My ideas for Summons can be they double as cameo for other famous Sega heroes like NiGHTS, Akira Yusei, Alex Kidd, etc.