Flair allows you to upgrade your card, no matter what card you get, even cards already considered holographic in normal terms
The same is true of the delve mechanic and the Phyrexian mana mechanic, and while neither of these mechanics ended up needing to be banned while in Standard, both are right on the border, and one slight miss could lead to major problems and bannable cards
It also keeps your opponent guessing as to your plans, or allows you to shift (pun intended) your plans on the fly to deal with your opponents current position
Translations also show that Mew has a Psychic attack that does 40 damage, costing two Psychic energy to use
Its especially noteworthy that until the Amonkhet block, this was the only non-female angel along with Malach of the Dawn
Magical Scientist allows you to summon a level six or lower fusion monster from your extra deck by paying the low cost of 1000 Life Points each