Legions

Slivers can't be blocked except by Slivers.

Flying Tap two untapped Birds you control: Draw a card. Tap two untapped Wizards you control: Target creature gains flying until end of turn.

All Slivers have "{1}: This permanent becomes the creature type of your choice in addition to its other types until end of turn."

Morph {2}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Master of the Veil is ...

Mistform Ultimus is every creature type (even if this card isn't on the battlefield).

Flying {1}: Mistform Seaswift becomes the creature type of your choice until end of turn. Morph {1}{U} (You may cast this card face down as a 2/2 c...

Morph {2}{U}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Voidmage Apprentice...

Morph {4}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Chromeshell Crab is tu...

Flying {T}, Tap two untapped Birds you control: Return target permanent to its owner's hand.

Morph {2}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Echo Tracer is turned ...

{7}{U}: Glintwing Invoker gets +3/+3 and gains flying until end of turn.

Cephalid Pathmage can't be blocked. {T}, Sacrifice Cephalid Pathmage: Target creature can't be blocked this turn.

Flying

Defender (This creature can't attack.) {3}: Turn Wall of Deceit face down. Morph {U} (You may cast this card face down as a 2/2 creature for {3}. T...

Morph {1}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Willbender is turned f...

When Merchant of Secrets enters the battlefield, draw a card.

Flying Cycling {2} ({2}, Discard this card: Draw a card.)

{1}{U}: Change Riptide Mangler's base power to target creature's power. (This effect lasts indefinitely.)

Covert Operative can't be blocked.

Whenever a player cycles a card, Warped Researcher gains flying and shroud until end of turn. (It can't be the target of spells or abilities.)

Flying Cycling {2} ({2}, Discard this card: Draw a card.)

Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.) When you cycle Gempalm Sorcerer, Wizard creatures gain flying until end of turn.

Flying {1}: Mistform Wakecaster becomes the creature type of your choice until end of turn. {2}{U}{U}, {T}: Choose a creature type. Each creature y...