You can copy a non-mana activated ability on an artifact or a dork you control if you sacrificed something to do so
You may spend mana as though it were mana of any color to cast planeswalker spells
Some Inks get stronger, while others fail to keep up
This post helps Commander players build decks that actually function by using a non-cargo-cult checklist, so they can tune faster, avoid non-games, and stop blaming bad luck for predictable math
The easiest way to do this, outside of sourcing all of the cards yourself, is to buy one of the premade decks that Wizards of the Coast sells
One of the ingenious things about Magic: The Gathering is, while there are (rather extensive) rules of the game, if a Magic cards text breaks a rule, that Magic cards text takes precedence