[Fallout 4] Legendary Mythic Deathclaw Melee Battle (No VATS/Power Armor)

I can&believe 3 Mythic Deathclaws (2 of them legendary) spawned right next to each other in the Glowing Sea! I was using my level 99 Melee character and decided to fight one of them in a straight up melee battle. At higher levels, some enemies don&have a level cap and will match your level, which is why all 3 are level 99 too. The biggest risk is the deathclaw&insta-kill move that can trigger even on a decent amount of HP. I&admit, I had to spam the stimpaks a little mid-battle to prevent that. It took a few tries, but I finally beat one with melee only! My armor was nothing special, apart from Grognak&Costume which gives a 20% boost to melee damage and +2 STR. I probably should have wore better leg armor and a helmet and, but I like how the character looks without it. I probably should have also used a different weapon because the Instigating Super Sledge only does double damage on the first hit (if at full HP), and after that it is just like a regular hammer. As you can see, the first hit didn&even do much damage. I had a +25% damage Heavy Sledgehammer on me that would have been much better. I tired to use the block/parry moves. Got a few blocks in, but I totally lost the timing of it mid-battle. At the ending made up for it though - Nerd Rage kicked in (+20% damage) and it was all over with a triple headshot finisher. Of course, the legendary loot was garbage...