Stampeding Wildebeests

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
At the beginning of your upkeep, return a green creature you control to its owner's hand.

Fyndhorn Elves

Uktabi Efreet

Cumulative upkeep {G} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Wild Growth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.

Crash of Rhinos

Natural Order

As an additional cost to cast this spell, sacrifice a green creature.
Search your library for a green creature card, put it onto the battlefield, then shuffle.

Llanowar Behemoth

Tap an untapped creature you control: This creature gets +1/+1 until end of turn.

Gargantuan Gorilla

At the beginning of your upkeep, you may sacrifice a Forest. If you sacrifice a snow Forest this way, this creature gains trample until end of turn. If you don't sacrifice a Forest, sacrifice this creature and it deals 7 damage to you.
{T}: This creature deals damage equal to its power to another target creature. That creature deals damage equal to its power to this creature.

Snow-Covered Forest

Llanowar Elves

Uktabi Orangutan

When this creature enters, destroy target artifact.

Berserk

Cast this spell only before the combat damage step.
Target creature gains trample and gets +X/+0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.

Serene Heart

Rampant Growth

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Giant Growth

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

Nevinyrral's Disk

This artifact enters tapped.
{1}, {T}: Destroy all artifacts, creatures, and enchantments.

Force of Nature

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
At the beginning of your upkeep, this creature deals 8 damage to you unless you pay {G}{G}{G}{G}.

Aboroth

Cumulative upkeep—Put a -1/-1 counter on this creature. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Concordant Crossroads

Llanowar Sentinel

When this creature enters, you may pay {1}{G}. If you do, search your library for a card named Llanowar Sentinel, put that card onto the battlefield, then shuffle.

Crumble

Destroy target artifact. It can't be regenerated. That artifact's controller gains life equal to its mana value.

Creeping Mold

Destroy target artifact, enchantment, or land.

Vitalize

Library of Leng

You have no maximum hand size.
If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into your graveyard.

Spined Wurm

Winter's Grasp

Yavimaya Ants

Trample, haste
Cumulative upkeep {G}{G} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Nature's Lore

Search your library for a Forest card, put that card onto the battlefield, then shuffle.