Soulshriek {B}
Instant
Target creature you control gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard. Sacrifice that creature at the beginning of the next end step.
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Cards that do something similar expected a card that isn't here?
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Bionic Blow 89%
$0.35#29278
"Target creature you control gets +X/+0 until end of turn. Then it deals damage equal to its power to up to one other target creature."
Primal Might 89%
#3932
"Target creature you control gets +X/+X until end of turn. Then it fights up to one target creature you don't control."
Chelonian Tackle 88%
$0.20#19374
"Target creature you control gets +0/+10 until end of turn. Then it fights up to one target creature an opponent controls."
Cheeky House-Mouse // Squeak By 86%
$0.31#10106
"Target creature you control gets +1/+1 until end of turn. It can't be blocked by creatures with power 3 or greater this turn."
Mage Duel 86%
$0.10#21489
"Target creature you control gets +1/+2 until end of turn. Then it fights target creature you don't control."
Ambuscade 86%
$0.11#19478
"Target creature you control gets +1/+0 until end of turn. It deals damage equal to its power to target creature an opponent controls."
Huatli's Final Strike 86%
$0.10#18495
"Target creature you control gets +1/+0 until end of turn. It deals damage equal to its power to target creature an opponent controls."
Ruthless Predation 86%
$0.16#18582
"Target creature you control gets +1/+2 until end of turn. It fights target creature you don't control."
Epic Confrontation 86%
$0.08#15665
"Target creature you control gets +1/+2 until end of turn. It fights target creature you don't control."
Rabid Gnaw 86%
$0.20#7808
"Target creature you control gets +1/+0 until end of turn. Then it deals damage equal to its power to target creature you don't control."
Assert Perfection 86%
$0.13#17466
"Target creature you control gets +1/+0 until end of turn. It deals damage equal to its power to up to one target creature an opponent controls."
Swift Kick 86%
$0.03#25321
"Target creature you control gets +1/+0 until end of turn. It fights target creature you don't control."
Shell Shield 86%
$0.07#15748
"Target creature you control gets +0/+3 until end of turn. If this spell was kicked, that creature also gains hexproof until end of turn."
Clear Shot 85%
$0.08#11880
"Target creature you control gets +1/+1 until end of turn. It deals damage equal to its power to target creature you don't control."
Hunter's Mark 85%
$0.12#21937
"Target creature you control gets +1/+1 until end of turn. Then it deals damage equal to its power to target creature or planeswalker you don't control."
Kang Dynasty 85%
$0.28#18930
"Target creature you control gets +1/+1 until end of turn for each card in your hand and can't be blocked this turn."
Spoils of the Hunt 85%
$0.05#27064
"Target creature you control gets +1/+0 until end of turn for each mana from a Treasure that was spent to cast this spell. Then that creature deals damage equal to its power to target creature an opponent controls."
Rhino's Rampage 84%
$0.49#12449
"Target creature you control gets +1/+0 until end of turn. It fights target creature an opponent controls. When excess damage is dealt to the creature an opponent controls this way, destroy up to one target noncreature artifact with mana value 3 or less."
Throw from the Saddle 84%
$0.08#18387
"Target creature you control gets +1/+1 until end of turn. Put a +1/+1 counter on it instead if it's a Mount. Then it deals damage equal to its power to target creature you don't control."