Nullifier Crewman

Crewman (You can group up any number of
attacking Corpus creatures to this card, they count as
a "single creature" for blockers.)
Enters the battlefield with 2 energy counter.
While you have energy counter:
• This creature has hexproof and prevent any damage
dealt to this creature by removing 1 energy counter.
• Enemy creatures use their base power/toughness
in combat against this creature.