Ghosts are a wonderful new addition; they bring the third game back to its roots – King's Bounty, where ghosts resurrected the units they killed, turning them into copies of themselves. In large battles, they are perhaps the biggest advantage:)... the difference from vampires is that they don't regenerate, and they also create new ones:)...
The downside is that each day there are fewer and fewer of them, and this is an incentive for new battles:D
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