Ver Wex, Prime Construct

Hexproof
Sacrifice a Construct: Put a +1/+1 counter this permanent, and it gains all abilites of the
sacrificed creature.
Martyr: When this creature leaves the battlefield,
you can sacrifice another creature with Martyr. If
you do, return Ver Wex to the battlefield. You
gain life equal to the sacrificed creatures
converted mana cost.
"Beware Ver Wex."
-The Teachings of Isu