Originally posted by Kristoffer O: There has been a flight bug earlier. Perhaps it wasn't fixed. We'll take a look.
I'd say there's still a flight bug. When a Pretender (or other mage) is attacking provinces all by itself, the game AI is ignoring "Flight" which was set in the script.
In this situation, it should cast flight upon the Pretender, because there isn't anyone else to cast it on. But instead - it picks a random spell.
Happened 3 times as I was testing an air-magic Scorpion King.
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Wormwood and wine, and the bitter taste of ashes.
And I'm not sure about DomII, but in singleplayer my lone Wyrm cast Flight... on an opposing Van! It seems the target of Flight can never be the caster him-/herself, even if no other targets are in range.