I have noticed that when I block rank 1 of a buff spell that all higher ranks of that buff are also blocked. However, it seems that the CWTN plugins are only checking blocked buffs for the exact rank when determining whether or not to cast a buff.
For example, I have Spiritual Vim blocked on my cleric. My beastlord now has Spiritual Vim Rk. III. My beastlord will target the cleric and spam cast Spiritual Vim Rk. III until OOM unless I change my blocked buff spell on the cleric to be Spiritual Vim Rk. III exactly and not just Spiritual Vim.
This behavior is consistent across all buffs for all CWTN plugins that I have used so far.
For example, I have Spiritual Vim blocked on my cleric. My beastlord now has Spiritual Vim Rk. III. My beastlord will target the cleric and spam cast Spiritual Vim Rk. III until OOM unless I change my blocked buff spell on the cleric to be Spiritual Vim Rk. III exactly and not just Spiritual Vim.
This behavior is consistent across all buffs for all CWTN plugins that I have used so far.

