Conjure atop the border of a site you control. Whenever a unit passes through Wall of Fire, it takes 3 damage.
Market
$0.09
Low
$0.01
Median
$0.15
How many squares does this aura occupy?
What does 'passes through' mean?
Does this affect the corners of the border? (e.g. Airborne units moving diagonally)
What if this is animated by an Enchantress?