Vivien's Invocation 
Sorcery
$0.27 #21415 0.07 8.1 years
Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order. When a creature is put onto the battlefield this way, it deals damage equal to its power to target creature an opponent controls.
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Cards similar to Vivien's Invocation expected a card that isn't here?
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Feral Encounter80%
$0.20↓#14595↑0.22↑3.0 years↓
"Look at the top five cards of your library. You may exile a creature card from among them. Put the rest on the bottom of your library in a random order. You may cast the exiled card this turn. At the beginning of the next combat phase this turn, target creature you control deals damage equal to its power to up to one target creature you don't control."
Collected Company78%
$0.87↑#12471↑0.40↑11.4 years↑
"Look at the top six cards of your library. Put up to two creature cards with mana value 3 or less from among them onto the battlefield. Put the rest on the bottom of your library in any order."
Break Out76%
$0.15↓#215830.002.6 years↓
"Look at the top six cards of your library. You may reveal a creature card from among them. If that card has mana value 2 or less, you may put it onto the battlefield and it gains haste until end of turn. If you didn't put the revealed card onto the battlefield this way, put it into your hand. Put the rest on the bottom of your library in a random order."
Aethermage's Touch74%
$0.07↓#209460.28↑20.3 years↑
"Reveal the top four cards of your library. You may put a creature card from among them onto the battlefield. It gains "At the beginning of your end step, return this creature to its owner's hand." Then put the rest of the cards revealed this way on the bottom of your library in any order."
Summoning Trap74%
$0.35↑#177940.0616.9 years↑
"Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in any order."
Turntimber Symbiosis // Turntimber, Serpentine Wood72%
$4.96↑#2306↑0.155.9 years↓
"Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. If that card has mana value 3 or less, it enters with three additional +1/+1 counters on it. Put the rest on the bottom of your library in a random order."
Kayla's Reconstruction72%
$0.20↓#182060.003.8 years↓
"Look at the top seven cards of your library. Put up to X artifact and/or creature cards with mana value 3 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order."
Michelangelo's Technique71%
$0.34↑#16057↑0.000.5 years↓
"Look at the top eight cards of your library. Put up to two creature cards with total mana value 6 or less from among them onto the battlefield and the rest on the bottom of your library in a random order."
Deploy the Gatewatch70%
$0.36↑#10827↑0.60↑10.1 years↑
"Look at the top seven cards of your library. Put up to two planeswalker cards from among them onto the battlefield. Put the rest on the bottom of your library in a random order."
Getaway Barrel70%
$0.32↑#217380.000.1 years↓
"When this artifact is put into a graveyard from the battlefield, reveal the top thirteen cards of your library. Put a random creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order."