I have known people who have played with 1 core for ages and still had a great time, and folks like myself who went and got a second core straight away
In that doesn't sound like an Unglued card, then I'm not sure what does
That -6 ability will be partially good as green tends to suffer a bit from reliable sources to draw cards
With the Mists of Lorien, you have a chance to pick and choose which cards you want to get rid of, or all of them if you have enough mana
Impcantation is a small sub-archetype with just 4 monsters, but they let you special summon each other out of the deck by showing either a ritual spell or ritual monster in your hand, which will then add either a ritual spell or ritual monster to your hand
These six lucky artists for the Sakura Superstar pack are Jehan Choo, Justyna Dura, Mandy Jurgens, Dani Pendergast, Yuko Shimizu, and /SYUTSURI