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Resurrection isn't needed for the living here.
And by the way, if our newly-minted level 7 units need to move around without walking (like dragons used to), then it's better for them not to fly – it doesn't look very good – they're too big (imagine a Tanna that doesn't teleport, but flies – it's funny), but rather teleport, and they can take the cloud effect from spells – work with the color and size (after the Earth Shock, there's such a cloud left after the explosion – this is just an option).
Added 2 minutes later
Deadly Strike is logical, but not allowing it is also an option.