What does "Block Heal if poisoned or yellow hits" mean?
Means:
When your target is poisoned it won't try to cast a heal on it, same when your target is under the effect of Mortal Strike (or invincible), cause the hit bar will turn yellow then.
(-> You can't heal when mortalled, need to remove that first. When you're using the BigHeal or MiniHeal it will cure you automatically before it casts a Heal when you're poisoned.)
Cool. Thanks.