Flamestrike is best used against several enemies that are closely stacked together, especially when talented into [Flame Patch]. However, due to its long cast time, it shouldn't be casted unless [Hot Streak] is up. Cast when Hot Streak activates instead of [Pyroblast] when this occurs.
[Flame Patch] causes Flamestrike to leave behind a ground effect, burning enemies for additional damage over 8 seconds.
[Hot Streak] allows the next Flamestrike to be instant cast and doubles its Ignite damage.
[Pyromaniac] gives Flamestrike casts a chance to reactivate Hot Streak.
[World in Flames] reduces the cast time of Flamestrike by 1.25 seconds and increases its damage done by 20%.
Hotfix (2015-07-20):Flamestrike damage increased by 50%.
Patch 6.0.2 (2014-10-14): Now available only to Fire mages. Once again triggers Ignite. Now only causes additional periodic damage to targets struck by initial damage, rather than leaving a persistent ground effect.