While not busted like some past Teferis, the Knight-pumping emblems work well with the front side of the card, while card advantage and removal are exactly what you want to see on a planeswalker
These EX cards have stronger powers and HP, making them popular with gamers and collectors
This was an insane corporate freebie, as it was created to celebrate his 60th birthday and handed out exclusively to employees who attended the event
The pump-up effect isn't from the "the Melodious Diva" monster, but from a Fairy monster, which is plain but nice
youre mainly interested in your creatures, and there will be plenty of spare lands and other spells to exile
You can't go turn five Oath and pray that (a) you've got something in hand to play on the next turn, and (b) that you'll be able to do anything with it anyway