So, for one single Blue mana, Essence flux blinks a Creature you control
In addition to Pongo and Lucky, you also have Tinker Bell Generous Fairy which has a built in ability effectively the same as the Be Our Guest song card, and three more cards for draw support: Hypnotize, Improvise and the new and powerful Strike a Good Match song card
Magic the Gathering's Final Fantasy set has been a bona fide slam dunk for both Hasbro and Square Enix
Which also works great for when they transform back over
There is a tendency for folks to play with creatures that are very large, and very cheap, often on turn four, like Zurgo Helmsmasher and Ruhan of the Fomori
Another thing to note about this red one-drop is that it helps fuel graveyard synergies, but is also therefore hit by graveyard hate