Perplexing Chimera 

Enchantment Creature — Chimera
$2.37 #5501 0.84 12.6 years
Whenever an opponent casts a spell, you may exchange control of this creature and that spell. If you do, you may choose new targets for the spell. (If the spell becomes a permanent, you control that permanent.)
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Cards similar to Perplexing Chimera expected a card that isn't here?
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Sudden Substitution78%
$7.61↑#6933↓0.73↓7.0 years↓
"Exchange control of target noncreature spell and target creature. Then the spell's controller may choose new targets for it."
Aethersnatch72%
$1.15↓#14011↓0.71↓10.8 years↓
"Gain control of target spell. You may choose new targets for it."
Invert Polarity72%
$0.54↓#2220↑0.48↓2.2 years↓
"Choose target spell, then flip a coin. If you win the flip, gain control of that spell and you may choose new targets for it. If you lose the flip, counter that spell."
Conjured Currency72%
$0.29↓#18237↓0.64↓13.9 years↑
"At the beginning of your upkeep, you may exchange control of this enchantment and target permanent you neither own nor control."