There is no 'new' mana - all they have done is give Colourless mana a symbol to distinguish it from a 'generic mana cost' which previously used the same (1), (2) etc notation.
It is still colourless, nothing has changed. Something that can generate any colour of mana, can still only generate WUBRG.
Lands usually have no color, they are colorless, since they have no mana cost Lands usually have no color, they are colorless, since they have no mana cost
Add 3 mana of any color to your mana pool.
Black Lotus is an artifact with 0 casting cost. It has tap, sacrifice: add three mana of any color to your mana pool
'Mana' is simply a count of energy you have generated from your permanents. If you tap a forest, you have added one green 'mana' to your 'mana pool', so you can spend that one green mana on a spell or ability.If a card adds mana to your mana pool, you aren't searching for any card, there is no card 'called' mana, and the card does not mean you get to do anything with 'land' cards from hand or library. All it means is you've now got some extra mana to use that phase, exactly as if you'd tapped some land for it.
No, lands do not go on the stack, cannot be countered and do not count as spells in any way.
That's the 'generic' mana cost, which can be paid with mana of any colour, or simply with plain colourless mana. So as an example, 'Sun Titan' has 4 W W on the top right corner. That means his 'converted mana cost' is 6, and he requires two of that to be White Mana, the other four can be any mana.
No
While there is no "this card will win any game of Magic: the Gathering" card in print, there are those cards that are dubbed the "Power 9" The power of these cards are determined by the ratio of mana cost, energy used to cast the spells in the game, and effect. The strongest of these is Black Lotus which provides 3 mana of any one color, of the five colors of mana, for zero mana investment. Another powerful card is Ancestral Recall which has a mana cost of 1(blue mana) and the effect of drawing 3 cards. Other cards are a bit more abstract in their cost:effect ratio. Force of Will is a good example, it is a counter-spell with a cost of 3 generic mana and 2 blue mana which is very weak, but has an alternate cost of exiling a blue card and paying one life point which allows it to be played even when all your energy has been expelled casting different spell cards. While I have explained a lot in this short paragraph, I still have not even scratched the surface of the complexity and depth of Magic: the Gathering. The best way to test a card for strength is to play it in a deck, and see what it can do.
It could be Mirrodin's 'Extraplanar Lens'. When it comes into play, you exile one of your lands for its Imprint trigger. Then when lands of the same name are tapped, they produce one more mana of any kind that land can make.
wish counters make you pay a certain amount of mana to reaveal the top card off your deck you may then play that card without paying its mana cost.
You are not restricted by what colors you have in your deck in any Magic format except for Commander (EDH). In Commander, you cannot have cards in your deck that have a color identity different from the general you chose. The color identity of a card is that card's color plus whatever mana symbols are in that cards text box (except for those in parentheses).
Yeah. An Island