You just wrote a small part of it all.

Actually, forget that. I have a better suggestion. Hypixel's "Smash Heroes" is a fighting game that basically combines Super Smash Brothers with Overwatch. Each of the 20 or so diverse kits has a complete set of custom moves. They each have an ultimate ability that recharges over time, and when you collect the smash crystal. Be warned, most of the kits cost a few coins to unlock, so you might not be able to play them all right away.

I really enjoy quakecraft. It's a simple deathmatch game where all players get 1-hit-kill railguns. If you would like more stragtegic combat, try the "teams" mode hypixel has. (Warning, this game is pretty hardcore. If you aren't experienced, you'll suck.)

I would say Spleef, it's a classic game that everyone knows how to play, and I've always played it with my friends so yeah :D Deftly my favorite!