There is a post called TEAM SELECTIONS (poor choice of title) that does address this and many other combinations including all women.
Title should have been Deck Selections. TEAM relates to your Team Members not Deck Combos.
I've mixed and matched a couple of variations and I concur Heroes seems most likely rather than all Bruiser or some Bruiser combination which is just a coincidence to my deck.
The other post (Team Selections) also tries to dispute the value of Realm Bonus. While their "may not" be a Realm Bonus (we dont specifically see it in attack boost like other games), there is most definitely value to building an All Realm deck with All Realm Spell boosts, so one shouldnt read too much into the "mixed deck is best" variation unless one has a bunch of SSR cards which are mixed and you cant trade them. SSR cards will beat Rare cards by definition, not because of a lack of Realm bonus.
. --- IN GAME RESPONSES/OFFERS Preferred IGN: RAGE [Dual Love] wasntxme, MARVEL wasntxme