Okay.....
It re-introduced the concept of infinite heals as long as you could stand to farm them or buy them, and said heals could be used to tank all damage for a period of time. The health going away after each death was worse because if you were actually struggling with an area then it was...
Halo Wars 2 and Team Fortress 2.
Halo Wars 2 mostly because they returned to a cast we actually knew and could like (NOT TO MENTION THEY RETURNED THE MORE SIMPLIFIED ARTSTYLES) while improving the game in areas where it needed it, and not for the sake of improving it.
Team Fortress 2 because...
The worst I've ever seen was overwatch. You throw in the MOBA players and the FPS players and you get the toxic waste that is overwatch.
The only redeeming factor was trading that in at gamestop actually gave me money for it, so I could buy Dark Souls 3