From an OOC perspective Allison didn't have too many enemies at that time. We had won the Caerwyn war and we built Kabrinskia. She was at one of the peaks of her popularity. Things were getting quiet and a little chaos was needed.
I pulled strings and got Rabisu made an Elder and then we talked OOC so he knew what was going on. Then I trumped up charges and forged a couple things and banished him. Made for lots of fun because we bashed our heads together more than once after that.
It was completely out of the blue and no one saw it coming. One minute chummy chummy then Rabisu contradicts Allison and then she rages on him. Worked out great for Rabisu. Being part of the anti Allison coalition got him promoted to Light shortly afterwards and then he became Duke of Caiyun.
