+flock (10)
Flying (This creature can't be blocked except by creatures with flying or reach.)
: Aven Flock gets +0/+1 until end of turn.
Flip X coins. For each flip you win, create a 2/2 green Sheep creature token named Rabid Sheep.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)
Flying, vigilance
Whenever Flockchaser Phantom attacks, the next spell you cast this turn has convoke.
Flying
Skyswarm — At the beginning of your end step, if a creature entered the battlefield under your control this turn, create a 1/1 blue Tyranid Gargoyle creature token with flying.
Flying, lifelink
Defender, flying
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
Phantom Flock enters the battlefield with three +1/+1 counters on it.
If damage would be dealt to Phantom Flock, prevent that damage. Remove a +1/+1 counter from Phantom Flock.
Return target permanent you control to its owner's hand. (Then exile this card. You may cast the creature later from exile.)
Gatherer works better in the Companion app!
or one mana of that creature's color.)