You may look at the top card of your library any time. You may play lands from the top of your library. Coven — As long as you control three or more creatures with different powers, you may cast creature spells from the top of your library. 2/3
Cumulative upkeep—Pay 2 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Prevent all damage that would be dealt to creatures you control.
Enchant creature Enchanted creature gets +3/+3. Whenever enchanted creature deals combat damage to a player, double its controller’s life total.
Flying When Keiga, the Tide Star dies, gain control of target creature. 5/5
Buyback {2} (You may pay an additional {2} as you cast this spell. If you do, put this card into your hand as it resolves.) Scry 3. (Look at the top three cards of your library, then put any number of them on the bottom and the rest on top in any order.)
Flash Creature cards you own that aren’t on the battlefield have flash. Each opponent can cast spells only any time they could cast a sorcery. 3/4
This spell can’t be countered. Creature spells you control can’t be countered. 4/3
You may cast spells this turn as though they had flash. Draw a card.
Search your library for up to two basic land cards, reveal those cards, and put one onto the battlefield tapped and the other into your hand. Then shuffle your library.
Whenever a creature you control deals combat damage to an opponent, you may draw a card.
At the beginning of your end step, you may manifest the top card of your library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up at any time for its mana cost if it's a creature card.) Exile a face-down permanent you control face up: You may play that card this turn. (You still pay its costs. Timing rules still apply.)
Whenever an opponent taps an artifact for mana, gain control of that artifact until the end of your next turn.
Vigilance, trample Whenever a creature you control deals combat damage to a player, draw a card if that creature has a +1/+1 counter on it. If it doesn't, put a +1/+1 counter on it.
Defender (This creature can't attack.) Walking Archive enters the battlefield with a +1/+1 counter on it. At the beginning of each player's upkeep, that player draws a card for each +1/+1 counter on Walking Archive. 2WU: Put a +1/+1 counter on Walking Archive.