Quirrel, Amnesiac Hero

Vigilance
Landfall — Whenever a land enters the
battlefield under your control, investigate.
Whenever you sacrifice a Clue token, put a First
Strike counter on Quirrel, Amnesiac Hero. If he already has First Strike, put a +1/+1 counter on
him instead.
"To live an age, yet remember so little... Perhaps I
should be thankful? All tragedy erased. I see only
wonders..."