USE MAGIC.
ALL KINDS OF MAGIC.
MAGIC DAMAGE.
LIGHTNING DAMAGE.
FIRE DAMAGE.
FUCK WEAPONS.
FUCK ARMORS.
FUCK POISE.
SHOW'EM YOUR MANLY PECS.
YOU CAN USE ALL THE SPELLS TO THEIR FULL POTENTIAL. ALL OF THEM. NO EXCEPTION. (Well, except the miracles related to Gwynevere but who the fuck uses those?)
Out of spells? Accept your opponent as your new overlord, as he managed to dodge everything.