Worldspine Wurm

Trample
When Worldspine Wurm dies, create three 5/5 green Wurm creature tokens with trample.
When Worldspine Wurm is put into a graveyard from anywhere, shuffle it into its owner's library.

Beast Within

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

Khalni Hydra

This spell costs {G} less to cast for each green creature you control.
Trample

Llanowar Elves

Harrow

As an additional cost to cast this spell, sacrifice a land.
Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Priest of Titania

{T}: Add {G} for each Elf on the battlefield.

Titanoth Rex

Trample
Cycling {1}{G} ({1}{G}, Discard this card: Draw a card.)
When you cycle Titanoth Rex, put a trample counter on target creature you control.

Ghalta, Stampede Tyrant

Trample
When Ghalta, Stampede Tyrant enters, put any number of creature cards from your hand onto the battlefield.

Elvish Mystic

Somberwald Sage

{T}: Add three mana of any one color. Spend this mana only to cast creature spells.

Explore

You may play an additional land this turn.
Draw a card.

Ghalta, Primal Hunger

This spell costs {X} less to cast, where X is the total power of creatures you control.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)