Glass Cannon

Strategy and Synergy
Glass cannon is a safer alternative to, since it won't reduce the directly, instead merely adding up a fragile stack to the player. With enough, the fragile stack can be lost by tanking up an attack, while keeping the Spell Power increase unaffected.

One can combine both: Glass Cannon and Double Edge for an even stronger DPS increase, but bear in mind to mitigate the defense drop incurred in Double Edge. This combo makes certain spells such as devastating.