Leaping Sparkfish

Bestow {1}{u} (If you cast this spell for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.)

Enchanted creature has prowess. As long as it's High Tide, enchanted creature has flying. (It's High Tide for you as long as you've played a land this turn.)

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn)