You can also block damage by using SoA or SoB. For example Oxen will do 3 damage less when opposed with SoA card, and any SoB card will block 2 damage out of Junta, Pi Fang and Berzerekes unless they have SoB in ability.
Also you can use walls in some situation to make opponent unable to use his low-power-high-damage cards and force him to play low-damage-high-power cards instead. This can be seen also kind of "damage blocking".
OR you can combine all of these and play 1 pilled Arno against Dregn and cause artery block on opponents brains.