Forest

Killer Bees

Flying
{G}: Killer Bees gets +1/+1 until end of turn.

Seeker of Skybreak

Llanowar Elves

Rofellos, Llanowar Emissary

{T}: Add {G} for each Forest you control.

Priest of Titania

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

Manabond

At the beginning of your end step, you may reveal your hand and put all land cards from it onto the battlefield. If you do, discard your hand.

Regrowth

Return target card from your graveyard to your hand.

Recycle

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

Cathars' Crusade

Whenever a creature you control enters, put a +1/+1 counter on each creature you control.

Fires of Yavimaya

Creatures you control have haste.
Sacrifice Fires of Yavimaya: Target creature gets +2/+2 until end of turn.

Wellwisher

{T}: You gain 1 life for each Elf on the battlefield.

Gaea's Cradle

{T}: Add {G} for each creature you control.

Skyshroud Elf

Naturalize

Feldon's Cane

{T}, Exile this artifact: Shuffle your graveyard into your library.

Rancor

Enchant creature
Enchanted creature gets +2/+0 and has trample.
When Rancor is put into a graveyard from the battlefield, return Rancor to its owner's hand.

Mirror Entity

Changeling (This card is every creature type.)
{X}: Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.

Llanowar Sentinel

When Llanowar Sentinel 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.

Slate of Ancestry

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

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Scion of the Wild

Scion of the Wild's power and toughness are each equal to the number of creatures you control.

Aluren

Any player may cast creature spells with mana value 3 or less without paying their mana costs and as though they had flash.