Vassalisation

Hi all I have recently been thinking that a Vassalisation option could be a really good idea to implement within the game.  I think this would mainly be good for multiplayer and here is why.  Say you and a bunch of friends start playing a multiplayer match and you plan on playing it over a few weeks or months but you are an aggressive player/faction.  It sometimes feels to me that your hands could be tied as you want to take the opportunity to crush an opponent quick to give you a lead but you don't want to eliminate them all together as your friend would have to sit out for how ever long the session lasts and this could be weeks or months.  But if you had an option that could allow them to still play but also give you a bonus such as vassalisation this would allow people to play as aggressive as they like but also it adds a bit of nice flavor to the game as you have someone being forced to give you a % of their FIDSI each turn (and even essence for the Vodyani).  The Vassleised player would have to be involved within their masters wars etc and if they raid to gain income etc a % would be donated to the master player.  But under the table they could be plotting with the other players to decline their vassal status (with enough influence) and then turn on their former masters or the master could grant their freedom later down the line for being a loyal and productive asset. There are several interesting possibilities :).  I think the master faction should be able to decide the others political status as well so say they have no say in politics/senators as a vassal would have to do as their master says etc.  This is just an idea I have been having so I haven't thought out all the details yet and tbh that would be up to amplitude studios :)  I just thought this would be a good idea and give the other players an opportunity to stay in the game instead of being killed off early.

But if your vassal turns on you then they have had their chance so kill them ;) lol

I think this could be involved in the supremacy victory condition so say you own/elmimnate every other faction but have 1 or vassles you wouldnt have to kill them as they are classed as part of your empire.  (They wouldnt get a win however so they would be inclined to turn on you at somepoint unless they are the type of player who thinks they cant come back from it so would rather be nivolved in the winners victory etc)

Hopefully I have explained my idea well enough what do you all think?  I look forward to hearing peoples thought and opinions :)