Each artifact you tap after you're done activating mana abilities pays for one generic.) Ward: four generic Whenever Kappa Cannoneer or another artifact enters the battlefield under your control, put a +1/+1 counter on Kappa Cannoneer and it can't be blocked this turn
Local card shops and trade fairs If you prefer to sell your cards in person, then a simple near me search on Google for card shops in your area is a good starting point
Perhaps the best illustration of a value-producing card is [card]Solemn Simulacrum[/card]
So, my evaluation comes from my own biases, which boil down to: play the sort of cards and decks that lets everyone at the table have a chance to breathe, play Commander, and have at least a decent chance to do the thing that their deck wants to do
It can shut down a mono-colored decks game entirely
Meanwhile, forcing creatures to come into play tapped on our opponent's side of the battlefield does two things