Speaking from the Warrior side, I agree with foresight bloodbath and Mercy Stroke. if you absolutely had to make room for another cross skill, id either take out Bloodbath or Mercy Stroke

Bloodbath- because this is based off damage (hence why its for Warriors). Any healing is good, but Paladins wouldnt benefit from it nearly as much as a Warrior would

Mercy Stroke- Kind of the same reason for Bloodbath. Mercy Stroke is good that it recovers 20% of max HP if it is the killing blow. Which means it needs to be critically timed, and do enough damage. Great for solo play, so-so in dungeons, and kinda garbage in raids. Still does decent instant damage, so its nice to have. But again, this is IN CASE you need to make room for another Cross Skill