Darth Vader, Sith Lord

Ward {3} or sacrifice a creature you control.
Trample, Haste
Dark Lord —At the end of your turn, search
your library for a {b} or {r} spell with converted
mana cost X or less, where X is the damage dealt
to an opponent by Darth Vader, Sith Lord this
turn and either cast the spell without paying its
mana cost or add it to your hand and untap
X lands, then shuffle your library.