{S}{S}: This creature becomes a Spirit Warrior with base power and toughness 2/3. {S}{S}{S}: If this creature is a Warrior, put a flying counter on it and it becomes a Spirit Warrior Angel with base power and toughness 4/4. {S}{S}{S}{S}: If this creature is an Angel, put two +1/+1 counters on it and it gains "Whenever this creature deals combat damage to a player, draw a card."

Flying Whenever another Spirit you control enters, this creature gets +1/+1 until end of turn. Sacrifice this creature: Counter target instant or sorcery spell unless its controller pays {X}, where X is this creature's power.

Flash Flying When this creature enters, target Spirit gains hexproof until end of turn. You may cast Spirit spells as though they had flash.

Flying This creature can block only creatures with flying. Tap two untapped Spirits you control: Tap target creature you don't control.

Flash (You may cast this spell any time you could cast an instant.) Flying {3}{U}: Draw a card.

This spell costs {1} less to cast if you control a Spirit. It also costs {1} less to cast if you control an enchantment. Counter target spell unless its controller pays {3}.

{T}: Add {C}. {S}{S}{S}: This land becomes a 4/3 creature with vigilance and all creature types until end of turn. It's still a land. ({S} can be paid with one mana from a snow source.)

Flying Protection from red (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything red.) Sacrifice this creature: Counter target spell that targets you.

Counter target spell with mana value 4 or greater.

Counter target spell unless its controller pays {1}. If you control a creature with flying, counter that spell unless its controller pays {4} instead.

As an additional cost to cast this spell, you may exile any number of blue cards from your hand. This spell costs {2} less to cast for each card exiled this way. Up to X target creatures phase out. (While they're phased out, they're treated as though they don't exist. Each one phases in before its controller untaps during their next untap step.)

Put a +1/+1 counter on target creature. It phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)

Choose target spell or permanent that's red or green. Its owner puts it on their choice of the top or bottom of their library.

Flying When this Vehicle enters, you get {E}{E} (two energy counters). Pay {E}: This Vehicle gains lifelink until end of turn. Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Enchant creature Enchanted creature has "Whenever this creature deals combat damage to a player, draw a card." As long as enchanted creature is legendary, it gets +1/+1 and has ward {1}. (Whenever enchanted creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.)

Return target creature to its owner's hand. If its mana value was 3 or less, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

This spell costs {2} less to cast if it targets a blue spell. Counter target spell unless its controller pays {3}.

Flash Flying Whenever this creature or another Spirit you control enters, tap target creature an opponent controls.

Target creature you control gets +1/+1 and gains hexproof until end of turn. Untap it. (It can't be the target of spells or abilities your opponents control.)

When this artifact enters, exile target card from a graveyard. {T}, Sacrifice this artifact: Exile each opponent's graveyard. {1}, {T}, Sacrifice this artifact: Draw a card.