Flying Whenever Aven Courier attacks, choose a counter on a permanent you control. Put a counter of that kind on target permanent you control if it doesn't have a counter of that kind on it.
NM-Mint - $2.20
Lightly Played - $2.10
Moderately Played - $2.00
Heavily Played - $1.70
Damaged - $1.40
NM-Mint Non English - $2.20
Lightly Played Non English - $2.10
Moderately Played Non English - $2.00
Heavily Played Non English - $1.70
Damaged Non English - $1.40