rare pokemon cards base set - Mewtwo (10) - 2 pokemon Base Set 2 Chansey Value of original pokemon cards

This can be seen in the left image, where the mana symbol is a solid black, contrasted with the right image, where the mana symbol contains colorful flecks in the black design

You are allowed to activate mana abilities at almost any time, so long as youre being asked to pay mana for something even in the middle of resolving another spell or ability, or during your untap step, where you normally dont get priority

Which, as it happens, is a bunch of starter decks and some dumb-ass AI to play against, with a meticulous series of tutorials to follow

Its also that Standard is a great way to get playtest throughput on new cards, even when your cube pods arent firing