Card Text Edit
"While attacking, you may exhaust this card to reroll all dice in your attack pool."
Rules Clarification Edit
While a ship equipped with this card is attacking, it can spend icons before resolving this effect. Those dice are removed from the attack pool and are not rerolled.
FAQ 3.1.1 April 2017
Available Through Edit
The effect of this Upgrade Card triggers during Attack Step 3: "Resolve Attack Effects"