Stalking Soulstealer

Stalking Soulstealer can't be blocked.
Predation {1}{b}: ({1}{b}, {t}: This creature deals damage equal to its power to target creature. Activate this ability only during your declare attackers step.)
"Worst fear? 'Round here we get waaay worse than a little unstoppable soul eating ghost, don't we lad?"
"Last week me mum saw a rat with two tails."
"Ya see?"