Soul of the Harvest

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

Seton, Krosan Protector

Tap an untapped Druid you control: Add {G}.

Voice of Many

When Voice of Many enters, draw a card for each opponent who controls fewer creatures than you.

Defiler of Vigor

Trample
As an additional cost to cast green permanent spells, you may pay 2 life. Those spells cost {G} less to cast if you paid life this way. This effect reduces only the amount of green mana you pay.
Whenever you cast a green permanent spell, put a +1/+1 counter on each creature you control.

Tangleroot

Whenever a player casts a creature spell, that player adds {G}.

Arbor Elf

Lifecrafter's Bestiary

At the beginning of your upkeep, scry 1.
Whenever you cast a creature spell, you may pay {G}. If you do, draw a card.

Hazoret's Monument

Red creature spells you cast cost {1} less to cast.
Whenever you cast a creature spell, you may discard a card. If you do, draw a card.

Weird Harvest

Each player may search their library for up to X creature cards, reveal those cards, put them into their hand, then shuffle.

Llanowar Elves

Elvish Mystic

Recycle

Skip your draw step.
Whenever you play a card, draw a card.
Your maximum hand size is two.

Slate of Ancestry

{4}, {T}, Discard your hand: Draw a card for each creature you control.

Shamanic Revelation

Draw a card for each creature you control.
Ferocious — You gain 4 life for each creature you control with power 4 or greater.