Synergy slot
I think we need a slot for synergies because it is so annoying to waste a slot for a synergy sonetimes. We need to use champions that is not upgraded for a important synergy so just one slot beside our main team for a champion to use a synergy would be great. To explain we are gonna fight with 5 hero team but we will not be able yo use the hero in synergy spot that we chose. What do you think?