Especially with

とりわけ singles one thing out from a group as especially notable. It is close to (とく)に and can translate as “especially” or “above all”.

Examples

Especially ferocious with とりわけ

Learn the meaning and usage of the vocabulary とりわけ in Japanese, with examples from manga.
ポケットモンスタースペシャル » Volume 1 » Page 146

Following a potential lead on trainers’ Pokémon having gone missing, Red sneaks aboard a ship docked at the harbor. There, he’s confronted by Machisu. As the single Pokémon with Red was already hurt in a surprise attack, Machisu offers to finish it off with his prize Pokémon.

マチス:
「こいつはとりわけ凶暴(きょうぼう)でな。ボールに()れることもままならん。」
“This one is especially ferocious. It can't even be put into a Poké Ball.”