Weird suggestion, probably not important at all right now, but just a small thing to consider. What if we could turn off the bonuses from using a x10 summon? As in, the "5 gold chests" from the Great portal, or "Guaranteed unlocks" during events. I know this could be useful in a few ways. Maybe you want better chances at getting full unlocks from the Great Portal, in which case it would help since (for some reason) gold chests can't turn into full unlocks. Or maybe you're low on loot keys or potions. You never know. For the heroic portal, maybe you DON'T want the featured hero. Maybe you just want... I dunno, everything else. And maybe you're just too impatient to wait until the hero you want is featured... either way, would just be a nice little touch to add just a bit more freedom to what we can do with the portals.
Oh you know, now that I think about it, that could open up a whole new thing you guys could do with the portal - CHOOSING your x10 summon bonus! Imagine a Brom vs Matsuta event where you could choose to either get a guaranteed Brom unlock with a x10 pull, or a Matsuta unlock! Or for the Great Portal, you could choose to get x5 gold chests, or 1 full hero unlock! Or during an all-stars heroic portal event, you could choose from 3 of the featured heroes to pick from (since being able to single out one hero would be too good)!
Also! Make a x10 Honor and VIP summon! Please! and thank you.