Heartless Assailant

Whenever a creature an opponent controls dies, put a +1/+1 counter on Heartless Assailant and it deals 1 damage to target creature or player.
Whenever a creature with converted mana cost 2
or less blocks or is blocked by Heartless Assailant, that creature gets -1/-1 until end of turn.
{b}{r}: Heartless Assailant gains first strike until
end of turn.