Swamped

Razor is a bully. Not as bad as the people who sent you here, but still he's just trying to throw his weight around.

You really hate bullies.

He hated that Rider was at the top of the Marshguard food chain, and with the news that he's vanished Razor is trying to throw his weight around. That includes getting rid of the officers closest to Rider, and hopefully anyone who'd follow them. If you can shut him up now, though, his power grab will screech to a halt, and more importantly, you'd preserve Rider's seat.

Corvus isn't the most talented marshguard, but he was loyal to Rider, and he's a decent tactician. You want him to temporary fill in Rider's place on the council. Of course Razor has one of his lackies he wants to fill the position as well...they might have to fight it out...but of course, if you can shame Razor, you could probably ensure it's a fair one.