Steel Street Enforcement (Blue)

Evo Upgrade - While this is defending, it gets +X

, where X is the number of Evos you have equipped.

"Stability is the bedrock of Metrix city, as peace and profit go hand in hand." - Enforcer Eesha

If this is not defending, it does not get +X.
This is a static ability. If the number of Evos you have equipped changes, it changes the value of X while this is defending.

Evo Upgrade - (Evo Upgrade – […] for each Evo you have equipped)

(Evo Upgrade – […] where X is the number of Evos you have equipped.)

Evo Upgrade is an ability label keyword.
Evo Upgrade effects count the number of cards you have equipped that have the subtype Evo.
Effects such as Teklovossen, the Mechropotent, increase the count by 4, even though it is not an Evo that is equipped.

Defense1

PitchBlue

SetsEVO