Discordant Spirit 


Creature — Spirit
At the beginning of each end step, if it's an opponent's turn, put a +1/+1 counter on this creature for each 1 damage dealt to you this turn.
At the beginning of your end step, remove all +1/+1 counters from this creature.
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Blood Hound 100%
$0.53#24037
"At the beginning of your end step, remove all +1/+1 counters from this creature."
+1 more matching line
Whirling Dervish 87%
$0.34#28595
"At the beginning of each end step, if this creature dealt damage to an opponent this turn, put a +1/+1 counter on it."
Dunerider Outlaw 87%
$0.05#26613
"At the beginning of each end step, if this creature dealt damage to an opponent this turn, put a +1/+1 counter on it."
Wall of Resistance 86%
$0.19#21352
"At the beginning of each end step, if this creature was dealt damage this turn, put a +0/+1 counter on it."
Furious Spinesplitter 85%
$0.25#26405
"At the beginning of your end step, put a +1/+1 counter on this creature for each opponent who was dealt damage this turn."
Wolverine, Best There Is 83%
$26.90#7098
"At the beginning of each end step, if this card dealt damage to another creature this turn, put a +1/+1 counter on him."
Prairie Dog 82%
$0.19#22393
"At the beginning of your end step, if you haven't cast a spell from your hand this turn, put a +1/+1 counter on this creature."
Vashta Nerada 81%
$3.00#5213
"At the beginning of each end step, if a creature died this turn, put a +1/+1 counter on this creature."
Fairgrounds Trumpeter 80%
$0.17#19127
"At the beginning of each end step, if a +1/+1 counter was put on a permanent under your control this turn, put a +1/+1 counter on this creature."
Passageway Seer 80%
$0.20#10886
"At the beginning of your end step, if you have the initiative, put a +1/+1 counter on this creature."
Insatiable Skittermaw 80%
$0.19#16821
"At the beginning of your end step, if a nonland permanent left the battlefield this turn or a spell was warped this turn, put a +1/+1 counter on this creature."
Kavaron Skywarden 80%
$0.13#21614
"At the beginning of your end step, if a nonland permanent left the battlefield this turn or a spell was warped this turn, put a +1/+1 counter on this creature."