Gem of Valor
This brilliant sapphire promises great rewards to the bold.
Consumable: Consumable 5,000 gp
Power Consumable (Free Action)
Use this power when you spend an action point. Roll 1d20 to determine the result, adding 1 to the result for each milestone you've reached today. Regardless of the result, using the gem consumes it and turns it to dust.
1-9: Gain a +1 power bonus to all defenses until the end of your next turn.
10-19: Gain a +1 power bonus to all attack rolls until the end of your next turn.
20: You gain an extra standard action that you must spend before the end of your next turn.
Published in Adventurer's Vault, page(s) 191.