However if PLD cross classed from lancer and MRD, then that would also require a change to how to unlock paladin. Unless you changed what it's secondary job is from conjurer to MRD or LNC and required one of those to be at lv15 instead when you go to unlock the job, it would be the only job that requires a secondary job at level 15 that you then can not cross class from, and would also create the question of what happens to players who maybe leveled up only GLD and CNJ and unlocked PLD if they make that change?

Also just my take on it, I feel like a paladin using blood for blood is somewhat opposed to the concept of this job. If you're meant to be a damage sponge as PLD, in my eyes, is built, then why would you want to intentionally give yourself a vulnerability increase? It would seem to fit the mantra I've heard healers tell DRKs "drop grit, eat shit" that will make them hate you for intentionally making yourself harder to keep alive at the gain of a minimal DPS increase.