you dont expend any mana really as bard or enchanter when you low level PL. Just 2-3 AE aggro and have them go at it. Bard uses 0 mana, enchanter maybe 5-15% (maybe more if bedlam'd)
Clicky = slow cast time, and when youre gathering 20+ mobs, that adds up.
Again, not terrible, but not the best PL. I always enjoyed druid PL when availble but by far bard or enchatner is better for that 1-20.
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