A nifty resource card that acts like a double resource, but more efficiently pays for 1-cost cards like Side Step, Never Back Down, and Preemptive Strike. I wouldn't call it a staple since you do need to have a critical mass of Defenses - otherwise the traditional double resource cards are better - but in the Flow Like Water archetype, this is a fantastic card.

An auto-include card in many Protection decks and a combo card that synergizes well with Magik in Protection aspect : with her hero's ability, Mutant Protectors or Magic Barrier + Defensive Energy flexibilize / accelerate the setup or the drawing in order to increase the odds for an or resource icon.

I have a doubt with this card. If, in a Magik deck I use this to pay for a Mutant Protectors while I have an ally on top of my deck, which resolves first ? The Mutant Protectors effect, or the Defensive Energy interrupt ? I would say that defensive energy must resolve first (if triggered), so you can't "setup" your ally with Limbo if you want to draw with Defensive Energy, I would thank if anybody can confirm me if I'm right or not.