Don't fucking nerf the core of a character's mechanics midgame
Happened to me once. Built a monk specifically for cool grapple movement interactions because I hate the standard "I attack. You attack me back." attritional gameplay that DnD normally has.
Stunned a guy, used my 2nd attack as a grapple, started running up a wall, which both me and the grappled target will fall off at the end of the turn (but I have slow fall, he doesn't). The GM says:
"You're running up the wall with the guy still grappled?"
"Yes. Perfectly legal according to the rules"
"You're grappling an orc fighter"
"Yes. And?"
"He's pretty heavy... Roll me a strength check"
Cleared it up after the game, but come on man. I explained how my character would work in combat beforehand, don't nerf me midgame.