Hussar
Legend
Pick one definition. Post it. Abide by it.
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Also, let me ask you... would a fighter holding a door shut to prevent mobs from coming through it to attack their allies be a defender action? After all, that's exactly what the wizard is doing.
No it would not be.
Why?
Because the enemies are not capable of attacking. There is nothing to defend. If anything that's action denial which is a controllery thing to do.