The target artifact retains any types, subtypes, and supertypes it has
Once the mode is chosen, it can't be changed
This is decent against 1/1 thopters and 2/2 zombies but there are increasingly 4/4 tokens kicking around, direct copy token too, all of which stand to make this a fairly good value removal spell
Midrange and control decks can pick between the Dungeon of the Mad Mage and Lost Mine of Phandelver
Like most Pokmon cards, the value of Flaaffy depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Unseen Forces)
// Flying Super Nova - As this creature transforms into Sephiroth, One-Winged Angel, you get an emblem with "Whenever a creature dies, target opponent loses 1 life and you gain 1 life." Whenever Sephiroth attacks, you may sacrifice any number of other creatures