Started at Bushido but that only triggers once with declaration of blockers. Next was Venomous Breath/Venom which would work good but usually only once due to the surprise factor.

Anyone have any ideas?

If I was at home I'd have given you separate link, since a few of those don't apply. It's really kinda pick your poison. Dead Iron Sledge, Retaliation, lots of fun things to do. Some require the ability to regenerate your dude.