Creature -- Wurm
Trample Landfall -- Whenever a land enters the battlefield under your control, you may put a +1/+1 counter on Terramorphous Wurm.
When Terramorphous Wurm dies, you may search your library for up to X basic land cards and put them onto the battlefield tapped, where X is the number of +1/+1 counters on Terramorphous Wurm.
Next: Royal Sunhawk
Weigh the Heart
Whistle While You Work1U
Whenever you search your library, you may whistle as you search. If you whistled during the entire search, each opponent puts the top three cards of his or her library into his or her graveyard. Slave labor never bothered Yawgmoth until the slaves began enjoying their work.
Whenever a spell or ability an opponent controls is countered by a spell or ability, you may put a gelatin counter on Gelatinous Overmind. x, Remove X gelatin counters from Gelatinous Overmind: put an X/X blue Ooze creature token onto the battlefield. If that token's power is 3 or greater, draw a card. Activate this ability only any time you could cast a sorcery.
Next: Sword of Conquest
Imprisoned for Centuries