Hertz, Devious Spearman

Spear Expert - When Hertz, Devious Spearman
is blocked by a creature who's power is
greater than his, gain +1/+0 and First Strike.
Whenever a creature your opponent controls with
more power than Hertz, Devious Spearman dies, create a 1/1 Devil creature token on to the battlefield with "When this creature dies, it
deals 1 damage to any target."