EGO can be an "All Or Nothing" NND (Defense is having an EGO) for 1/2 less Advantage/more Limitation.
NNDs are usually Rare. However since most living beings have EGO it may be a Very Common defense in the same category of frequency as PD & ED for AVADs.
Detonate: Blast 6d6, Does BODY (+1)(60 active pts); NND (having an EGO, Very Common; -1/2). Total cost: 40 pts.
"The latent energy inside inanimate objects can be harnessed, focused & released violently. Does not work on targets w/ free will."