Forest

Reflex Sliver

Quick Sliver

Flash
Any player may cast Sliver spells as though they had flash.

Strength in Numbers

Until end of turn, target creature gains trample and gets +X/+X, where X is the number of attacking creatures.

Cleaving Sliver

Mountain

Blur Sliver

Sliver creatures you control have haste. (They can attack and {T} as soon as they come under your control.)

Gemhide Sliver

All Slivers have "{T}: Add one mana of any color."

Bonesplitter Sliver

Horned Sliver

Battering Sliver

Heart Sliver

Muscle Sliver

Spinneret Sliver

Striking Sliver

Sliver creatures you control have first strike. (They deal combat damage before creatures without first strike.)

Homing Sliver

Each Sliver card in each player's hand has slivercycling {3}.
Slivercycling {3} ({3}, Discard this card: Search your library for a Sliver card, reveal it, put it into your hand, then shuffle.)