Overdox is a MOBA from Korean developer Haegin where all of the different champions you can use are melee only. It's been rattling around for a while are, so you may have heard of it or even played it before but now it's officially globally released for iOS and Android.
Similarly, there'll be different gear you can equip them with too that will provide various buffs like increased health.
In Overdox, a big arena contains 12 combatants, each vying to take down the other 11. Players can select their unit and equip it with armor before charging into battle.