T3/T4 Enderman slayer setup/strats?

[Spookuu]

Heya! I'm currently running the following:
3/4 Legion 5 (Fully Recomb'd) Necron's with Legion 5 (Recom'd) Warden's helmet
Legendary level 100 whale (Shelmet) (Boss fight)
Mythic Level 100 enderman (For XP)
OFA maxed emeraldblade with 1.7bil in purse
Vorpal Katana and Hurricane bow for shield
Support:
Overflux, Wand of Atonement, Florid zombie sword

However I can't seem to be able to solo the T3 enderman boss, is there anything I should get or are there any strats to killing this boss? I can...

Read more

free plugins
minecraft paid for free
SpigotMC
minecraft plugins
mcmarket
mc-market
spigotmc
free minecraft paid plugins
free minecraft plugins
aac free
ewg free
Minecraft Premium Plugins
ewg free download
litebans free
epicworldgenerator free
free schematics
leaked schematics minecraft
schematics
schematics leaked
schematics free
minecraft schematics free
paid minecraft schematics free
paid minecraft schematics for free
free cracked plugins
free cracked minecraft plugins
plugins
featherboard download
featherboard plugin download
antiaura download
xenforo leaked
xenforo for free
xenforo addons