Blightwidow

Reach (This creature can block creatures with flying.)
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Giant Spider

Reach (This creature can block creatures with flying.)

Cloudcrown Oak

Reach (This creature can block creatures with flying.)

Ezuri’s Archers

Reach (This creature can block creatures with flying.)
Whenever Ezuri’s Archers blocks a creature with flying, Ezuri’s Archers gets +3/+0 until end of turn.

Acid Web Spider

Reach
When Acid Web Spider enters the battlefield, you may destroy target Equipment.

Giant Spider

Reach (This creature can block creatures with flying.)

Wall of Vines

Defender (This creature can’t attack.)
Reach (This creature can block creatures with flying.)

Pale Recluse

Reach (This creature can block creatures with flying.)
Forestcycling , plainscycling (, Discard this card: Search your library for a Forest or Plains card, reveal it, put it into your hand, then shuffle your library.)

Giant Spider

Reach (This creature can block creatures with flying.)

Oran-Rief Recluse

Kicker (You may pay an additional as you cast this spell.)
Reach (This creature can block creatures with flying.)
When Oran-Rief Recluse enters the battlefield, if it was kicked, destroy target creature with flying.

Deadly Recluse

Reach (This creature can block creatures with flying.)
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Giant Spider

Reach (This creature can block creatures with flying.)

Pale Recluse

Reach (This creature can block creatures with flying.)
Forestcycling , plainscycling (, Discard this card: Search your library for a Forest or Plains card, reveal it, put it into your hand, then shuffle your library.)

Ember Weaver

Reach (This creature can block creatures with flying.)
As long as you control a red permanent, Ember Weaver gets +1/+0 and has first strike.

Court Archers

Reach (This creature can block creatures with flying.)
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Jungle Weaver

Reach (This creature can block creatures with flying.)
Cycling (, Discard this card: Draw a card.)

Woolly Spider

Reach (This creature can block creatures with flying.)
Whenever Woolly Spider blocks a creature with flying, Woolly Spider gets +0/+2 until end of turn.

Juvenile Gloomwidow

Reach (This creature can block creatures with flying.)
Wither (This deals damage to creatures in the form of -1/-1 counters.)

Gloomwidow

Reach
Gloomwidow can block only creatures with flying.

Lys Alana Bowmaster

Reach
Whenever you cast an Elf spell, you may have Lys Alana Bowmaster deal 2 damage to target creature with flying.

Cloudcrown Oak

Reach (This creature can block creatures with flying.)

Canopy Spider

Reach (This creature can block creatures with flying.)