Do you have to pay each turn to activate a gear card's effect, and does unit health/damage reset at the end of each turn?

Ruling: You pay the cost of a gear card once when you play it, just like any other card. After that, its effects are active without additional payment each turn. Units have might and damage (not health) - damage is cleared at the end of combat and at the end of turn, but damage does not reduce might.

Sequence:

• When a gear card is played, pay its cost once
• The gear's effects are then active for subsequent turns without additional payment
• During combat, units take damage but their might value stays the same
• Damage is cleared from units at the end of combat
• Damage is also cleared at the end of turn

Nuances:

• Damage does not reduce a unit's might value - a 9 might unit with 4 damage still has 9 might and deals 9 damage
• A unit is destroyed when damage dealt to it equals or exceeds its might value
• Cards like Dazzling Aurora that generate units each turn can be very strong once in play, but require getting them out initially (e.g., paying 9 cost)