Cain the Vindictive

Haste
When "Cain" enters the battlefield choose
an opponent. Place a 1/1 white and green
legendary creature token named "Abel"
under their control.
{1}{r}{t}: Fight target creature you dont control.
Whenever "Abel" dies you may pay 2 life and
return "Cain" to its owners hand.
If you do, draw 2 cards,
Cain costs 1 less to cast this turn.