1. Agent rush - like spike rush, but everyone gets random agent each round, ult points reset each round but you get them faster
2. Ability mashup - you can choose a set of abilities, Agent selection determines signature abil, while others can be taken from other agents, but you can only choose one ability for each slot (you cant pick 3 flashes for example or 4 ult) example: killjoy with turrent, jett smokes, raze grenade and ult of omen
3. Knife only mode - ONLY if riot is gonna improve melee hitreg
4. Extreme agent rush - saw similar idea, basically spike rush but everyone gets the same randomly chosen agent with random weapon each round, also this mode adds new orb which lets you "upgrade" to another randomly chosen agent
5. Extreme agent rush variant 2 - spike rush,everyone gets the same randomly chosen agent with random weapon and the agent changes each half
6. Duel arena - you get to 1v1 with random player
7. Mode where you get to play with another set of weapons, which all are projectile based, RPG's grenade lauchers, throwable axes, shurikens etc
8. 10x mode - agents with 1000 hp and 500 armor, judge puking out a lot of bullets, op having one bullet loaded and dealing like 9999 damage per shot lol, odin having a crazy knockback and 0 accuracy, its really crazy basically
9. x-1 mode - stats of weapons are inversed, this one needs some thinking
10. Headshot only - only headshots deal any damage, mode for confident players
11. Fast unrated - a sorter version of unrated mode, but longer than spike rush, i think a lot of players talked about that, basically each round is a bit shorter and winning condition is smaller

EDIT: ideas suggested by comments:

1. 3v3 duels with no abilities by https://www.reddit.com/user/xdlulhugepeen/
2. Agent rush but each team votes for team agent (example: TEAM JETT VS TEAM REYNA) by https://www.reddit.com/user/Chinner21/

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