Echo

At the beginning of your precombat main phase,
if you have more than four cards in your hand,
gain life equal to the difference. Otherwise, draw
a card.
"Did they know? That I didn't quite leave, didn't quite
stay? Should I be ashamed? That I linger here, where
my memories are kept? Should I be ashamed that I
now envy your flesh prison?"
-Four Needles under Plentiful Leaves