mtg.wtf

Flying
At the beginning of each upkeep, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."
Pay 10 life: Untap all lands you control. Activate only once each turn.

Flying
Haunt
When Belfry Spirit enters the battlefield or the creature it haunts dies, create two 1/1 black Bat creature tokens with flying.

Note the mana value of each card as it's put into exile.
Bell Borca, Spectral Sergeant's power is equal to the greatest number noted for it this turn.
At the beginning of your upkeep, exile the top card of your library. You may play that card this turn.

Flying
Whenever Bellowing Fiend deals damage to a creature, Bellowing Fiend deals 3 damage to that creature's controller and 3 damage to you.

Raid — When Bellowing Saddlebrute enters the battlefield, you lose 4 life unless you attacked this turn.

Intimidate
Other green creatures you control have intimidate.

Flying, hexproof
Megamorph {5}{U}{U}
When Belltoll Dragon is turned face up, put a +1/+1 counter on each other Dragon creature you control.

You gain 1 life for each player.
Haunt
When the creature Benediction of Moons haunts dies, you gain 1 life for each player.

Islandwalk

{1}{U}: Adapt 1.
Whenever one or more +1/+1 counters are put on Benthic Biomancer, draw a card, then discard a card.

Whenever a green creature dies, its controller discards a card.

A person outside the game becomes your teammate. (Choose any number of cards in your hand, on top of your library, or on the battlefield under your control. Those cards become your teammate's hand, library, and permanents, respectively.)

Whenever a creature you control deals combat damage to a player, you may draw a card.
{1}{U}, {T}: Creatures your opponents control attack this turn if able.

Target creature and all other creatures with the same name as that creature get -3/-3 until end of turn.

Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.
{T}: The next time target creature adapts this turn, it adapts as though it had no +1/+1 counters on it.

Draw a card for each creature target player controls, then draw a card for each creature another target player controls.

Creatures you control have base power and toughness X/X until end of turn.

When Biomathematician enters the battlefield, create a 0/0 green and blue Fractal creature token. Put a +1/+1 counter on each Fractal you control.

Move any number of +1/+1 counters from target creature onto another target creature with the same controller.

At the beginning of the end step, if you control four or more creatures named Biovisionary, you win the game.

Flying
{T}: Add one mana of any color.

{1}{G/P}, {T}, Sacrifice a creature: Search your library for a creature card with mana value equal to 1 plus the sacrificed creature's mana value, put that card onto the battlefield, then shuffle. Activate only as a sorcery.

Vigilance
Whenever Bishop of Rebirth attacks, you may return target creature card with mana value 3 or less from your graveyard to the battlefield.

At the beginning of your upkeep, you lose 1 life and create a 1/1 black Faerie Rogue creature token with flying.

First strike
Protection from white