Rank 1: When you critically hit with Starfire, you have a 33% chance of increasing damage done by Wrath by 40%. When you critically hit with Wrath, you have a 20% chance of increasing your critical strike chance with Starfire by 40%. Each effect lasts 15 sec and each has a separate 30 sec cooldown. Both effects cannot occur simultaneously.

Rank 2: When you critically hit with Starfire, you have a 66% chance of increasing damage done by Wrath by 40%. When you critically hit with Wrath, you have a 40% chance of increasing your critical strike chance with Starfire by 40%. Each effect lasts 15 sec and each has a separate 30 sec cooldown. Both effects cannot occur simultaneously.

Rank 3: When you critically hit with Starfire, you have a 100% chance of increasing damage done by Wrath by 40%. When you critically hit with Wrath, you have a 60% chance of increasing your critical strike chance with Starfire by 40%. Each effect lasts 15 sec and each has a separate 30 sec cooldown. Both effects cannot occur simultaneously.