Kayn, The Shadow Reaper

Level Up {b/r}{b/r} or {w/b}{w/b}
(You can only choose one path to Level.)
Level 1: If Red was spent, Kayn gains Lifelink.
If White was spent, Kayn gains First Strike.
Level 2: If Red was spent, Kayn gains +0/+2.
If White was spent, Kayn gains +2/+0.
Level 3: If Red was spent, Kayn becomes a Demon in addition to his other types and gains Deathtouch. If White was spent, Kayn gains Double Strike and Vigilance.