Menace
Whenever a creature you control attacks alone, put a +1/+1 counter on it. Then surveil X, where X is the number of counters on it. (Look at the top X cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
$23.00 $13.80
$34.00 $20.40
$78.00 $39.00
$96.00 $48.00
$99.00 $49.50
$13.00 $9.00
$3.99 $2.39
$8.99 $5.39