Sleek, You Got Him Out of the Snowbise?

Sleek being friends with the DM is like being friends with cafeteria lady at school. He didn't hear a gum gum just constantly saying, "Duh, duh, duh," for 15 minutes. Sleek's last turn he did one damage to Osmond and that was his entire movement. I don't know if this will work, but could I try to cast Sleek on Ward? Oh, that's an interesting one. You just need to see how many hit points of creatures you can affect. For reference, mud is hit points and Ward is not a boss.