Elizabeth, Dark Countess

Devils Contract - Partner this creature with any Legendary creature and it has "Lose life equal to the number times it was casted from the command zone instead of paying the commander tax."
Afflict 3, Ward {p/c}{p/c}
{p/b}{p/r}:Place a corruption counter on another non-token creature. Corruption counters give +1/+0 and demon subtype. This creature and partnered creature gain all the abilities of the creatures that have a corrupt counter.
{p/b}{p/u}:Sacrifice a creature with corruption counters a