There are ways around that, using cards like Squee, Goblin Nabob to discard meaningless cards or using other tricks like Stroke of Genius to draw extra cards that you can use to pay, but most people who played the Masticore played it fairly
Cyan, Vengeful Samurai* Part of the Final Fantasy 6 Commander deck, Cyan here can come down as cheap as 1 mana, and provide a growing double striking body for white inclusive recursion decks
(You may return a land card from your graveyard to your hand and mill two cards instead of drawing a card.) If you control multiple lands with the same name, only one of those lands will count toward the seven or more required to create a Zombie
See their post here: I find it a bit unusual that they decided to ban cards that were so popular and have been around for so long, but they offer a pretty good explanation in the article: its experimental
Booster Illustration: Denizen of the Deep by Anson Maddocks