When you have a sideboard to bring in this interaction, Tibalt stops being so tricky, which is why this is only a best-of-one ban
For each mulligan your opponent takes, you may draw one card
Swing Eric, Expert Helmsman into a character he can take out on his own and as long as hes banished in return you've got yourself a two birds and one stone situation
Holographics - ordinarily, Pokmon cards have holographic foils only on certain sections of the card art (often only the main card image) - but this can vary depending on the type of card
"Obelisk the Tormentor" ("The Giant Divine Soldier of Obelisk" in Japanese, though the anime/manga card bears the English "The God of Obelisk"): Derives from the term "obelisk", a type of monument
Have you noticed popular commanders are getting more mechanically complex every year