If you have a way to tap Gran-Gran outside of attacking, such as Springleaf Drum, you can reliably dig through your deck every turn
I don't think I would have ever gotten to this card if I didn't start with "make an artifact that does something artifacts do but rewards you for playing a deck with a lot of creatures." Thus far in the history of Invitational cards, this is the only art that we as a company felt bad enough about that we commissioned a promo version of the card to allow us a second chance at the picture
The MTG Mulligan rules weren't always part of the game, and they've changed plenty over the years
No, backgrounds have an enchantment subtype that is separate from auras, and they do not inherently target or attach to a creature the way auras do
You know youd love Tolarian Serpent in Syr Konrad, the Grim if the colors worked out
You don't need to give the gift to the same opponent you're targeting