Sin, Unending Cataclysm 
Legendary Creature — Leviathan Avatar
$0.29 #5082 0.42 1.2 years
Flying, trample
As Sin enters, remove all counters from any number of artifacts, creatures, and enchantments. Sin enters with X +1/+1 counters on it, where X is twice the number of counters removed this way.
When Sin dies, put its counters on target creature you control, then shuffle this card into its owner's library.
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Falco Spara, Pactweaver83%
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"Flying, trample"
Guan Yu, Sainted Warrior79%
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"When this card is put into your graveyard from the battlefield, you may shuffle this card into your library."
Spike Cannibal78%
$1.32↑#21823↓0.29↓28.2 years↑
"When this creature enters, move all +1/+1 counters from all creatures onto it."
Thief of Blood75%
$6.66↑#10607↓0.4110.8 years↑
"As this creature enters, remove all counters from all permanents. This creature enters with a +1/+1 counter on it for each counter removed this way."
Star Pupil74%
$0.13↓#16381↓0.00↓5.4 years↑
"When this creature dies, put its counters on target creature you control."
+1 more matching line
Angel of Fury74%
$7.72↑#30026↓0.4728.2 years↑
"When this creature dies, you may shuffle it into its owner's library."
Alabaster Dragon74%
$0.37↑#26081↓0.25↓29.3 years↑
"When this creature dies, shuffle it into its owner's library."
Spiteful Squad74%
$0.06↓#23252↓0.22↓5.4 years↑
"When this creature dies, put its counters on target creature you control."
+1 more matching line
Iron Apprentice74%
$0.28↓#60270.00↓4.5 years↑
"When this creature dies, if it had counters on it, put those counters on target creature you control."
+1 more matching line
Avenging Angel74%
$1.69↑#28595↓0.00↓28.9 years↑
"When this creature dies, you may put it on top of its owner's library."
Dark Revenant74%
$0.15↓#28329↓0.07↓13.9 years↑
"When this creature dies, put it on top of its owner's library."
Parish-Blade Trainee73%
$0.09↓#20545↓0.00↓4.8 years↑
"When this creature dies, put its counters on target creature you control."
Undying Beast73%
$0.16↓#31642↓0.5029.3 years↑
"When this creature dies, put it on top of its owner's library."
Gandalf, White Rider72%
$1.11↑#11141↓0.06↓3.2 years↑
"When this card dies, you may put it into its owner's library fifth from the top."
Servant of the Scale71%
$0.07↓#16660↓0.27↓11.4 years↑
"When this creature dies, put X +1/+1 counters on target creature you control, where X is the number of +1/+1 counters on this creature."
+1 more matching line
Fell Horseman // Deathly Ride70%
$0.17↓#15786↓0.24↓3.0 years↑
"When this creature dies, put it on the bottom of its owner's library."
Lembas70%
$1.51↑#3414↑0.21↓3.2 years↑
"When this artifact is put into a graveyard from the battlefield, its owner shuffles it into their library."
God-Eternal Oketra70%
$0.67↑#2438↑0.347.3 years↑
"When this card dies or is put into exile from the battlefield, you may put it into its owner's library third from the top."
Galloping Lizrog70%
$0.29#11182↓0.29↓7.6 years↑
"When this creature enters, you may remove any number of +1/+1 counters from among creatures you control. If you do, put twice that many +1/+1 counters on this creature."
Murderous Rider // Swift End70%
$0.19↓#1652↑0.17↓6.9 years↑
"When this creature dies, put it on the bottom of its owner's library."