Flying (This creature can't be blocked except by creatures with flying or reach.),
deathtouch (Any amount of damage this deals to a creature is enough to destroy it.),
lifelink (Damage dealt by the creature also causes its controller to gain that much life.)
Whenever you gain life, Rodolf Duskbringer gains
indestructible (Effects that say "destroy" don't destroy that permanent. An indestructible creature can't be destroyed by damage.) until end of turn.
At the beginning of your end step, you may pay
. When you do, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the amount of life you gained this turn.