Samira, The Desert Rose

If Samira, The Desert Rose destroys an enemy in combat, you get an additional combat phase and Samira, The Desert Rose ranks up until end of
turn, starting at D
C- Samira, The Desert Rose gains vigilance.
B- Samira, The Desert Rose gains double strike.
A- Samira, The Desert Rose gets +2/+4.
S- Samira, The Desert Rose deals X damage to
each creature owned by an opponent where X is
her power