So i'm attempting the Vampire Subquest on Chapter 4 and he's completely destroying me. Using a party of a maxed Spiritmaster, Ninja, Templar and Arcanist, I manage to bring down his hp into the Tens of thousands HP range (he has 300K HP on Hard) but then he just spams Energy Burst over and over again, nullifying my Rampart shield.
And here I was thinking the 6 elemental dragons were hard enough >_>.
Edit - Lester's down and out 
. The battle in itself was of all epic sorts since figuring out the synergies between the Spiritmaster and Templar classes are amazing. Perma-Rampart shield basically destroyed Lester.
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"
