When I first turned in my design for Mirrodin , Bill Rose, the head designer, felt I had too many mechanics
For example, if an opponent controls Blood Moon, an enchantment which says "Nonbasic lands are Mountains," and you play Rootpath Purifier, Blood Moon can no longer apply to the lands you control because they are all basic
If you haven't sacrificed any permanents during your turn by the time your end step begins, Sawblade Skinripper's last ability won't trigger at all
The company pays for shipping if you sell over $30 of cards
A deck is a players main weapon and can freely experiment and match cards and combos however they like and that it suits their decks and winning strategies
And if you are not going to buy cards, you can just enjoy the beautiful pictures