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get_attack_cost

manabrew_engine::combat::attack_cost

Function get_attack_cost 

Source 
pub fn get_attack_cost(
    cards: &[Card],
    attacker: &Card,
    defender: DefenderId,
) -> i32
Expand description

Compute the total generic mana cost required for attacker to attack defender.

Returns the accumulated cost as a generic mana amount, or 0 if no cost. Scans all battlefield permanents for Mode$ CantAttackUnless statics.

Card script example (Propaganda):

S:Mode$ CantAttackUnless | ValidCard$ Creature | Target$ You | Cost$ 2