Whenever you tap a land for mana, add one mana to your mana pool of any type that land produced. (The types of mana are white, blue, black, red, green, and colorless.) Whenever you cast a creature spell, draw a card.
Flash If an opponent would draw two or more cards, instead you and that player each draw a card.
Until end of turn, target creature gets +3/+3 and gains trample and "Whenever this creature deals combat damage to a player, draw that many cards."
As Door of Destinies enters the battlefield, choose a creature type. Whenever you cast a spell of the chosen type, put a charge counter on Door of Destinies. Creatures you control of the chosen type get +1/+1 for each charge counter on Door of Destinies.
Hideaway (This land enters the battlefield tapped. When it does, look at the top four cards of your library, exile one face down, then put the rest on the bottom of your library.) {T}: Add {G} to your mana pool. {G}, {T}: You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.
Choose a nonland permanent you don't control, then each other player chooses a nonland permanent he or she doesn't control that hasn't been chosen this way. Destroy all other nonland permanents.
Worn Powerstone enters the battlefield tapped. {T}: Add {C}{C} to your mana pool.