Cards like Aven Courier

Bold Plagiarist76%

$0.34↓#15884↓0.075.5 years↑

"Whenever an opponent puts one or more counters on a creature they control, they put the same number and kind of counters on this creature."

share-counters, counters-matter, triggered-ability

Warkite Marauder75%

$0.21↓#6621↑0.53↑8.8 years↑

"Flying"

attacking-matters-self, attack-trigger, evasion

Bribe Taker74%

$0.29↓#20801↓0.064.5 years

"When this creature enters, for each kind of counter on permanents you control, you may put your choice of a +1/+1 counter or a counter of that kind on this creature."

share-counters, counters-matter, triggered-ability

Oran-Rief Ooze73%

$0.30↓#78130.206.1 years↑

"Whenever this creature attacks, put a +1/+1 counter on each attacking creature with a +1/+1 counter on it."

pseudo-proliferate, attacking-matters-self, attack-trigger

Skyship Plunderer72%

$0.16↓#16788↓0.00↓9.7 years↑

"Whenever this creature deals combat damage to a player, for each kind of counter on target permanent or player, give that permanent or player another counter of that kind."

pseudo-proliferate, counters-matter, evasion

Firebird, Blazing Ranger72%

$0.21↓#15284↓0.150.3 years↓

"Flying"

attacking-matters-self, attack-trigger, evasion

Wingmate Roc71%

$0.67↓#88650.0612.1 years↑

"Flying"

attacking-matters-self, attack-trigger, evasion

War Machine, Avenging Arsenal71%

$0.39↓#11067↓0.33↑0.3 years↓

"Flying"

attacking-matters-self, attack-trigger, counters-matter

Incisor Glider71%

$0.18↓#19962↓0.113.7 years

"Flying"

attacking-matters-self, attack-trigger, evasion

Fear of Falling70%

$0.14↓#19347↓0.00↓2.1 years↓

"Flying"

attacking-matters-self, attack-trigger, evasion

Jhoira's Timebug70%

$0.17↓#87410.43↑20.0 years↑

"

: Choose target permanent you control or suspended card you own. If that permanent or card has a time counter on it, you may remove a time counter from it or put another time counter on it."