Grievous, Droid General

Whenever Grievous, Droid General attacks,
create X 1/1 colorless Battle Droid creature
tokens that are tapped and attacking, where X is
equal to Grievous, Droid General's power.
{2}{b}: Regenerate Grievous, Droid General.
"I am the leader of the most powerful droid army the
galaxy has ever seen!"