Luigi, Fearless Ghost Hunter

{2}{w}: Exile target Spirit until Luigi, Fearless
Ghost Hunter leaves the battlefield. Activate this ability only if Luigi is untapped and only as a
sorcery.
Whenever a Spirit enters the battlefield, tap and
put a +1/+1 counter on Luigi, Fearless Ghost
Hunter.
"Looks ordinary... A little TOO ordinary..." -Luigi, Fearless Ghost Hunter