Forest

Aspect of Hydra

Target creature gets +X/+X until end of turn, where X is your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)

Giant Growth

Target creature gets +3/+3 until end of turn.

Steel Leaf Champion

Steel Leaf Champion can't be blocked by creatures with power 2 or less.

Leafkin Druid

{T}: Add {G}. If you control four or more creatures, add {G}{G} instead.

Gruul Guildgate

Gruul Guildgate enters tapped.
{T}: Add {R} or {G}.

Elvish Mystic

Lightning Strike

Lightning Strike deals 3 damage to any target.

Gigantosaurus

Drakuseth, Maw of Flames

Flying
Whenever Drakuseth, Maw of Flames attacks, it deals 4 damage to any target and 3 damage to each of up to two other targets.

Soul of the Harvest

Trample
Whenever another nontoken creature you control enters, you may draw a card.

Clan Defiance

Choose one or more —
• Clan Defiance deals X damage to target creature with flying.
• Clan Defiance deals X damage to target creature without flying.
• Clan Defiance deals X damage to target player or planeswalker.

Llanowar Elves

Kalonian Tusker

Centaur Courser

Surrak, the Hunt Caller

Formidable — At the beginning of combat on your turn, if creatures you control have total power 8 or greater, target creature you control gains haste until end of turn.

Karametra's Acolyte

{T}: Add an amount of {G} equal to your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)

Mountain

Greenwood Sentinel

Vigilance (Attacking doesn't cause this creature to tap.)

End-Raze Forerunners

Vigilance, trample, haste
When End-Raze Forerunners enters, other creatures you control get +2/+2 and gain vigilance and trample until end of turn.

Ghalta, Primal Hunger

This spell costs {X} less to cast, where X is the total power of creatures you control.
Trample