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 - $1.00
Lightly Played - $1.00
Moderately Played - $0.90
Heavily Played - $0.80
Damaged - $0.70
NM-Mint Non English - $1.00
Lightly Played Non English - $1.00
Moderately Played Non English - $0.90
Heavily Played Non English - $0.80
Damaged Non English - $0.70