I was playing Brawl with Tezzeret, Betrayer of Flesh as my commander. My opponent played Nightclub Bouncer and bounced Tezzeret to my hand. I chose to move Tezzeret to my command zone instead of my hand, but I did not receive the option to remove the perpetual casting cost effect. Unless I'm misunderstanding a ruling, I'm pretty sure I'm supposed to be able to remove perpetual effects on my commander whenever I move them to the command zone?