It makes opportunity attacks.I didn't even catch that! A bummer, really... other than flavor of saying there's a giant fire angel fighting on your behalf, how is summoning any different than what could be done with a sustained zone or something of that effect?
I know that's a far cry from having a full stat line, but its something.
That's the solution I used for my Illusory Double mechanic in my hexblade revision. Here's what I encountered with it- basically, you can only use the "has the caster's stat but is a minion" solution if you expect the summoned creature to have a very, very, VERY short lifespan. That was perfect for me- I was creating a class specialization called the "path of splinters" that was themed after the hexblade splintering off shadowy doubles of himself during combat. It was an explicit design choice to make the illusory doubles short lived, and I balanced around it. But believe me. They end up very, very short lived.I wonder if maybe Summoned creatures might use some derivation of the summoner's stats for attacks. Perhaps use the summoner's defenses and work similar to minions? Have a feat (or more) that let you up those defenses (say +2 to AC for summoned creatures) or
You could also give them hp equal to a healing surge. Or require you to spend a healing surge to cast the spell, and give them hp equal to your bloodied value. That's actually the solution I like most, but I'm not sure its going to be used.