Draconian Revenant

Flying, Decrepit (immune to deathtouch)
When Draconian Revenant blocks, you may
pay {x}{b}. If you do, Draconian Revenant
gains +0/+X and can block an additional attacker until end of turn.

This Undead Draconian stalks Castle
Darkmoor's Upper Halls with an icy stare and
an even frostier demeanor.