My guess is you're talking about Cadence. She has Barrier, which gives her 100% resistance to shock(And Fire, and she comes with frost and poison, so with that shield she has all 4)-- so Orb lightning would have been less effective than Decay. Not saying decay would have been effective. Over 1000 years to spare on her. And 25 MR.
I was more or less just throwing her around seeing just how much abuse she could take. With that massive regen, invulnerability to all the elements, and a huge MR.... well, she did decent. She is 5 stars now.
I guess I'll resummon her again. It ain't like I'm low on water gems.
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As for your capital, I finally hit it with something designed to the situation. I preached up so it is in my dom so those vampires would be dead even if I lost. Then the Queen of Clouds was outfit with Mage Bane along with a bunch of other nice gear to get the kill. The lowered hit points due to dom was also useful. (Btw, when Agartha is slinging queens of elemental air around, it probably means they've got more resources than they know what to do with.)
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As for Keboo, I'm not sure he has any forces left. More importantly, however, he appears by my count to only have 7 candles left. I'm sending the relevant cure towards him at the moment.
Pangaea has 4 provinces left, which will only take a few more turns to clean up. Curiously, there is something in Dupros causing a battle every turn-- at the end of the turn, after upkeep even, I get attacked there by a handful of maenads with no leader that immediately rout.
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Here is a fun stat for you: My gem income is currently 21 Fire, 31 Air, 49 Water, 38 Earth, 32 Astral, 48 Death, and 31 nature. Not counting the odd extra gem or two from items and commanders that produce them, and the odd random event.
I have 4 Naiads summoned at the moment that spend every turn turning 10 water gems into 15 Naiad warriors each. You might have seen them around. Ya know, the light infantry with Awe... and more importantly no upkeep. If there is a better way to spend a basically unending supply of water gems, I don't know it. Anyways, If Shining Armor ever gets his freaking mute affliction cured I was going to have him warp and army of 280 of them plus a handful of siege golems wherever I needed them.