// Bestow 5UU (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
this.addAbility(new BestowAbility(this, "{5}{U}{U}"));
// Flying
this.addAbility(FlyingAbility.getInstance());
// You control enchanted creature.
this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new ControlEnchantedEffect()));
// Enchanted creature gets +1/+1 and has flying.
Effect effect = new BoostEnchantedEffect(1,1,Duration.WhileOnBattlefield);
effect.setText("Enchanted creature gets +1/+1");
Ability ability = new SimpleStaticAbility(Zone.BATTLEFIELD, effect);
effect = new GainAbilityAttachedEffect(FlyingAbility.getInstance(), AttachmentType.AURA);