Enhanced By Phyrexia

Enchant creature
Enchanted creature is a Phyrexian in addition to
its other types and has "Whenever you activate a
an ability of an artifact you control for the first
time each turn, if it isn't a mana ability, put a
+1/+1 counter on this creature, it can't be
blocked this turn."
The phyresis process twists the mind of the infected.
They gain great power but now serve an evil they can't escape.