+Birds (5)
Flying
: Add one mana of any color.
Whenever Matsu-Tribe Birdstalker deals combat damage to a creature, tap that creature and it doesn't untap during its controller's next untap step.
: Matsu-Tribe Birdstalker gains reach until end of turn. <i>(It can block creatures with flying.)</i>
Reach <i>(This creature can block creatures with flying.)</i>
When Seller of Songbirds enters the battlefield, create a 1/1 white Bird creature token with flying.
When an opponent casts a spell, if Veil of Birds is an enchantment, Veil of Birds becomes a 1/1 Bird creature with flying.
Gatherer works better in the Companion app!