Lokken
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They look nice) I agree.
But I would definitely work on the stats. If you think about it, there's no point in upgrading a ghoul into other forms, as there's almost no difference. Unless some ability is added after that, like a retaliatory attack.
The undead will most likely be a separate unit. Both the ghoul and the ghoul lord are scavengers, but the latter also has a cavalry charge (an attempt to effectively use the unit's high speed, given its fragile health).
