"You know, I have one of those too," said Newt, taking out his wand.
"Expelliarmus!" said Grimmson. With that, Newt's wand went flying before he even had a chance to aim it.
"Nice going," Jacob muttered.
"I'm glad to have you here, Scamander," Grimmson said evilly. "Now, you will watch helplessly as I score the biggest kill of my blood-soaked career. I can only hope that I'll also get to see your dumb face when Grindelwald uses the Toenail of Icklibõgg on all the world's fantastic beasts!"
"You discuss that with Grindelwald at your last get-together?" asked Newt.
"Yes, we get together for tea and Exploding Snap every other Thursday," Grimmson replied in a sarcastic tone of voice. In fact, that was exactly how they went about it. This is canon now.
"I won't let you hurt that Mokele-mbembe!" Newt declared gallantly.
"You aren't going to have a choice in the matter," replied Grimmson, raising his wand.
"We'll see about that, Grimmson!" yelled a brave feminist voice. They all looked up and saw Tina swinging in on a vine. Nagini followed, but Tina still hadn't noticed she was there.