Gryff's Boon
Gryff's Boon SOI
Shadows over Innistrad Uncommon 
Cost: Mana W
CMC: 1
Card Type: EnchantmentAura
Oracle Text: Enchant creature

Enchanted creature gets +1/+0 and has flying.

Mana 3Mana W: Return Gryff's Boon from your graveyard to the battlefield attached to target creature. Activate this ability only any time you could cast a sorcery.

2016-04-08 If you activate Gryff’s Boon’s last ability and the target creature becomes an illegal target in response, the ability is countered and Gryff’s Boon remains in your graveyard.