Flying, trample
Pay 3 life: Return Cleaving Reaper from your graveyard to your hand. Activate only if you had an Angel or Berserker enter the battlefield under your control this turn.
"I won't pollute my blade with your blood, demon. You'll die by your own axe!"
The Angel or Berserker doesn't have to still be under your control in order to activate Cleaving Reaper's ability. Additionally, the Angel or Berserker could have entered the battlefield under your control at any point in the turn, even before Cleaving Reaper was put into the graveyard.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.