I only tackle them with my archer, and run them round and around in circles - watching carefully for blood oath. If they cast that I run as fast as I can out of range till I can cast remove curse without fear of accidentally pinging them with an arrow.
for blood oath, if you’re an archer that usually uses bows (not crossbows), hit a macro to equip a crossbow (abhorrence named crossbow good).
with zero bolts in your inventory... then you won’t fire, and you’ll still use your weapon skill for defense.
likewise, if you’re a mage, in the middle of casting say earthquake, and get hit by blood oath, equip a mage weapon -15 weapon without spell channeling or even a shield without spell channeling. You’ll fizzle the spell In the middle of casting. you will also likely have lower SDI, in case the spell casts. Less damage reflected.
swapping out slayer talismans and slayer weapons on warriors, will help in same way.