Icathian Paradox: new game mode idea (two champion tag team FFA mechanic)

Hey, been thinking about an idea for a game mode for some time, It's called Paradox

Basic setting and theme: In the ruins of Icathia lays a gate to a part of the void where two artifacts are held

each player has to unlock a gate into a vault by opening and holding various strategic areas in s king of the hill type battle

players have a finite amount of lives, six deaths are allowed total before you drop out

holding the point for the longest at the timeout, or being the last player standing wins you the match

the tag team element:

you chose two champions, they share the same setup completely (Runes/masteries/new crap/items)

You get one summoner spell, which is whatever you want (But flash or ghost will probably be your best bet)

the other spell is the TAG button, which stores charges, allowing you to swap out between your two champions