Fishliver Oil

Chronicles Foreign Black Border · #20 common
Enchantment — Aura
Mana Cost 1 U
Enchant creature (Target a creature as you cast this. This card enters attached to that creature.) Enchanted creature has islandwalk. (It can't be blocked as long as defending player controls an Island.)
Color Identity U
Legalities Duel, Predh, Legacy, Modern, Pauper, Vintage, Commander, Oldschool, Premodern, Oathbreaker, Paupercommander