There are two types of Nicol Bolas
There's the original Nicol Bolas and then there's the Nicol Bolas Planeswalker from the Shards of Alara block.
When you say standard, do you mean Standard the format, also know as Type 2? If so yes, Nicol Bolas - Planeswalker is, currently, a legal card in all formats. The Nicol Bolas, dragon card is not legal in Standard or Extended formats.
Whatever someone is prepared to pay for it. For an idea, I would look at somewhere like StarCityGames (USA) or MagicMadhouse (UK) these are prices people might pay for cards, eBay completed listings will show what people are paying for cards. Which if you'd done that in the first place, you'd have an answer before you'd written your original question.
Unless you have the first add-on pack, the Nicol Bolas expansion. The last two decks arent available to you.
He Planeswalked away from Alara after Ajani beat him in a fight.
a one pack is a booster pack!
You can find "Marshmallon" in the booster pack Duelist Pack Yugi.
You can find "Black Garden" in the booster pack Crossroads of Chaos.
I'm pretty sure there are 9 cards in a booster pack.
there are 9 cards in a booster pack but 5 cards in each yousei pack with 2 booster packs inside.
Like all booster packs every booster pack has 9 cards in each pack
No, it does not come in any booster pack. It is only available in Structure Deck 1 - Dragon's Roar.
A Pokemon booster pack is a Pokemon card packet where you get ten cards of that series.