Darth Vader, Sith Lord

Menace, Vigilance
When Darth Vader, Sith Lord enters the battlefield with power and toughness equal to X,
tap up to X target creatures where X is Darth
Vader, Sith Lord's power as it enters.
At the beginning of your end step Darth Vader,
Sith Lord deals damage to each other tapped
creature in play