this might be a stupid question i hope it hasnt been asked before. In the model of the dragon the head is pretty close to the ground so its practicly like if dragons had their sight level as low as humans so they cant see over melees and stuff? to shoot their fire for example?
my question is can they see higher by standing on their back legs or lifting their neck or somthing?

Line of sight is measured from the view of the model (ie from the eyes). Perhaps you could mount the dragon on a rock to make him taller?

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'Though my memory's fading, I remember two things very clearly: I am a great sinner and Christ is a great Savior'
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yea the dragons must be strange and have a low line of sight

it would depend on what you and your opponent views it as. logically it should be able to do it. game wise might be for balance reasons ask your friend your fighting with before the game starts and work for a agreement.