Rule 821.1.c.2
The cost of the Equip ability is determined as though that Equip ability was being activated choosing the unit with the Weaponmaster ability, as modulated by any abilities that alter Equip costs.
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The cost of the Equip ability is determined as though that Equip ability was being activated choosing the unit with the Weaponmaster ability, as modulated by any abilities that alter Equip costs.