If the target card is an illegal target by the time Sevinne's Reclamation tries to resolve, the spell doesn't resolve
Another high value target could be Wandering Archaic, which can create problems for opponents trying to cast one-sided boardwipes or who simply lack the mana to pay its two-mana tax
Spectacular Spider-Man (Various) The Spectacular Spider-Man cards from this set were bound to be popular, both because the card is great and its artwork is awesome, but if you have a textured foil one, you might be in for a windfall
You could only cast the top half normally, the bottom half would be cast like flashback, from the graveyard then exiled
Turn it face up any time for its mana cost if it's a creature card.) To cloak a card, put it onto the battlefield face down
Whether its simply using it to give a freshly cast Kenrith haste and trample, or using it when an opponent is taking on another opponent with a few unreasonably large creatures, its a heck of a bargain for just one red mana