You're going to need some fodder to make this really work out, but there's plenty of that in the format, and the enters trigger is pretty legit
The parted grass in the foreground implies that the viewer has caught a glimpse of Manaphy, yet it seems to be posing happily for Pokmon TCG players rather than being surprised
You may want to flash it out to surprise chump something or to swing on a tapped board by casting at the end of that players turn
Storm (When you cast this spell, copy it for each spell cast before it this turn
Once you have access to the Missions menu, start completing the following objectives: Wonder pick one time
Theme boosters are intended for constructed formats, where buying a theme booster for your deck's colors gives you a nice, hefty chunk of cards ready to slot in