Capture the Flag Game Mode concept

This concept is still being worked on and may radically change, if you have an Ideas for this please leave it in the comments bellow

History behind the Idea: I liked the concept they had with Dominion when they wanted to get out of the typical laneing faze of League, but we all agree that the game itself was not that good (Loved the Hide in Seek custom game though, RIP) I wanted to create a Capture the Flag game mode where we could get that, but actually enjoy it.

Goal: Capture the enemy flag three times, not that hard. Capping the Flag will give the capturing team 500 gold

Bonus Goals: These goals can give you a gold buff, or a buff to the champion who gets it. Relic hunting: The Relic will appear randomly in the area like a bard chime, no one will know where it is directly, but a small 1000 unit circle will appear on the mini-map, showing it's general location. Finding the Relic will give the member who found it and his team 250 gold. Relics will appear every 200 seconds. Ancient Runes: Ancient Runes litter the ruins, activating and reactivating every 5 minutes. There are 5 ruins. The Rune of Fortune increases gold gain from objectives, Rune of Winds will increase your movement speed outside of combat, Rune of Fury will increase your Attack Speed and AD, Rune of Wisdom will increase your AP and CDR, and Rune of the Hawk will give you Oracle Elixir vision, all of them lasting for 2 minutes.

Where to take place?: I was thinking this could be in Shurima, probably taking place in some ancient ruins. The two sides could be a Merchant Group vs Gang of Bandits/Treasure Hunters (Possibly related to Sivir), this could make the "Flag" something like Trade goods.

Map: The map will be like a large jungle without bushes, but instead large ruined structures that could create it's own mini-fog of war and act as Terrain. Small corner parts of building, the other side of a pillar, even fallen rubble from Aqueducts could act as this Terrain/Bush medium.

Towers?: I thought a bit on how this could work in this game mode, and then I thought of the Engineer of TF2. So the idea is still being worked on, but I think something of a mini Tower Trinket or something could work by having your champion being able to place one in the Flag (Treasure) Room, but not able to put them too close to the flag (I.E. Firing Range), and only have one active at a time. They won't be able to initially see invisible units, but could be upgraded (For a small cost of say, 200, 250 gold) at level 9 along with other types of upgrades. They also will scale with level but won't be able to deal enough damage to chunk the health bar, so having a Tank who could run through grab the flag, and get out without dying mid way. However this goes I just want the towers to act as an aid on defense, not be the only thing defending the room while everyone goes Leeroy Jenkins into the fray. The Towers will not regenerate health overtime

Tower Upgrades: So I did talk about upgrade-able towers, now to the upgrades. The upgrades will act more like augmentations to them, trading off some stats to add others, or bonus effects. You can only have one augmentation to your tower at a time. Oracle Tracker: Allows nearby towers towers to see invisible enemy units, but cannot attack. Coolant Add-on: Towers can slow targets, but will lose attack speed and deal no damage to targets, slow does not stack. Kinetic Enhancement: creates an Aura that increases allied movement speed in the area, but loses the ability to attack enemies all together. Hextech Rapid Fire Turret: Gain increase attack speed and a little damage, but loses health and resistances. Long Range Cannon: Gain an attack damage and attack range increase, but now loses health, gains a minimum range, and has a really slow fire rate Repair Turret: Turret will not attack, but slowly heal surrounding turrets while they are not in combat.

Flag Capping: So the idea hear is simple, you could have a small channel time of like, 2.5 seconds and then have the flag. While you have the flag you are visible to everyone on the Mini-Map. Being stealthed while having the flag will give an Evelynn like circle where you will be revealed if the enemy comes too close, while the mini map will show the general area in which you currently are a small 850 circle. I added this stealth mechanic because I don't want entire games to be stalled by one trolley Teemo. The flag can be returned by channeling for 2.5 seconds or will return on it's own after 50 seconds.

Economics and Basing: So with gold gain it will probably be a passive gain of gold with certain objectives like capping the flag giving a gold boost.