New gamemode idea, CHAOS MODE

Chaos mode is chaotic 5v5 gamemode similar to URF. Here's what it has in it:

Chaos mode will be played 5v5 on Summoners Rift. Features 50% cooldown reduction. You can have 10 item slots. You can have 2 Trinkets. Summoner spells have their cooldowns taken down by 2/3. (Hooray for ghost.) ALL passives stack. Most items have their prices halved, 3600G items and above have it cut down by 1/3. Every 5 minutes the current top side boss is replaced with either rift herald or baron nashor. Every 3 minutes the current dragon is replaced with a new one. Elder dragon can also spawn whenever. Turrets deal %Max health true damage. Homeguard is available at 5 minutes and at maximum effectiveness Recall only takes 5 seconds. Taking baron reduces it to 2. Baron has 1/3 less health before the 20 minute mark. Elder Dragon has 1/2 of its health before the 20 minute mark. Dragons, Rift heralds and Baron Nashor's that are in combat will not despawn until out of it. And that, is it.

A lot of these things are pretty insane. If i need to change or remove something please tell me!