Is that the one? Edit: No it isn't, may have fought them before already, can't remember. It'll have been a long time if I have.in the arena
They are random Lynel spawns. They have giant clubs, and their silver incarnates are hyper aggressive. Unlike their other brethren, they don't generally do things that are overtly easy to goad into a dodge. They also don't use the fire breath or the charge attacks very frequently, which gives you very little time to headshot cheese them.
Crushers are more for parrying because of the way their attacks hit. You can perfect dodge a C. Lynel's overhead swing and still get hit by the splash, which knocks you out of the flurry rush moment. They'll also break most shields in a single hit.
I thought I had the hang of Lynels after taking a couple out, but I've been having a lot of trouble with them lately.
Sword/spear are easy, its only the Crushers that are really a challenge at times. It also depends on where it is, the one in upper Hebra can be a pain because of the cold and snow fucking with movement.
That said, I generally only use the Sheikah armor so for me, any of the Lynels are generally OHKOs as I have very little armor and I use +Att food.