That's fine as you were talking generically. Most of your suggestions aren't in his color identity.
Things like vexing shusher are probably going to die quickly so that I can interact with your other spells.
10 mana to destroy a target permanent is a bit high right? 8 mana to sweep the board is too with o stone. You kind of showed that in some of your suggestions. What I meant was that the permanent based interaction is largely inferior to spell based. I admit that there are some permanent based interaction that meet the minimum definition for those things.