Natural Affinity

All lands become 2/2 creatures until end of turn. They're still lands.

Forest

Urza's Power Plant

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

Envelop

Azure Drake

Llanowar Elves

Crazed Armodon

{G}: Crazed Armodon gets +3/+0 and gains trample until end of turn. Destroy Crazed Armodon at the beginning of the next end step. Activate only once each turn.

Elvish Archers

Stream of Life

Ironshell Beetle

When Ironshell Beetle enters, put a +1/+1 counter on target creature.

Molimo, Maro-Sorcerer

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Molimo, Maro-Sorcerer's power and toughness are each equal to the number of lands you control.

Unsummon

Return target creature to its owner's hand.

Magnify

All creatures get +1/+1 until end of turn.

Trygon Predator

Flying
Whenever this creature deals combat damage to a player, you may destroy target artifact or enchantment that player controls.

Remove Soul

Counterspell

Island

Rhystic Study

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

Dissipate

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Animate Land

Until end of turn, target land becomes a 3/3 creature that's still a land.

Pincher Beetles

Shroud (This creature can't be the target of spells or abilities.)

Canopy Spider

Reach (This creature can block creatures with flying.)

Giant Mantis

Walking Sponge

{T}: Target creature loses your choice of flying, first strike, or trample until end of turn.

Deluge

Apes of Rath

Whenever Apes of Rath attacks, it doesn't untap during its controller's next untap step.

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.

Prevent all combat damage that would be dealt this turn.

Dancing Scimitar

Flying (This creature can't be blocked except by creatures with flying or reach.)

Safe Haven

{2}, {T}: Exile target creature you control.
At the beginning of your upkeep, you may sacrifice Safe Haven. If you do, return each card exiled with Safe Haven to the battlefield under its owner's control.

Blastoderm

Shroud (This creature can't be the target of spells or abilities.)
Fading 3 (This creature enters with three fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)

Remote Isle

Remote Isle enters tapped.
{T}: Add {U}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Emerald Medallion

Green spells you cast cost {1} less to cast.

Skyshroud Ranger

{T}: You may put a land card from your hand onto the battlefield. Activate only as a sorcery.

Mystical Tutor

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

Giant Growth

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

Tatyova, Benthic Druid

Landfall — Whenever a land you control enters, you gain 1 life and draw a card.

Azimaet Drake

Flying
{U}: Azimaet Drake gets +1/+0 until end of turn. Activate only once each turn.

Thresher Beast

Whenever Thresher Beast becomes blocked, defending player sacrifices a land of their choice.

Fountain of Youth

Sol Ring

Birds of Paradise

Priest of Titania

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

Elvish Champion

Other Elf creatures get +1/+1 and have forestwalk. (They can't be blocked as long as defending player controls a Forest.)

Feldon's Cane

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

Snap

Return target creature to its owner's hand. Untap up to two lands.

Clone

You may have Clone enter as a copy of any creature on the battlefield.

Havenwood Battleground

Havenwood Battleground enters tapped.
{T}: Add {G}.
{T}, Sacrifice Havenwood Battleground: Add {G}{G}.

Llanowar Elite

Kicker {8} (You may pay an additional {8} as you cast this spell.)
Trample
If Llanowar Elite was kicked, it enters with five +1/+1 counters on it.

Cursed Rack

As Cursed Rack enters, choose an opponent.
The chosen player's maximum hand size is four.

Elven Riders

Elven Riders can't be blocked except by Walls and/or creatures with flying.

Flash Counter

Faerie Conclave

Faerie Conclave enters tapped.
{T}: Add {U}.
{1}{U}: Faerie Conclave becomes a 2/1 blue Faerie creature with flying until end of turn. It's still a land.

Spore Frog

Sacrifice Spore Frog: Prevent all combat damage that would be dealt this turn.

Sapphire Medallion

Blue spells you cast cost {1} less to cast.

Slippery Karst

Slippery Karst enters tapped.
{T}: Add {G}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Aven Fogbringer

Flying
When Aven Fogbringer enters, return target land to its owner's hand.

Henge of Ramos

{T}: Add {C}.
{2}, {T}: Add one mana of any color.

Jump

Target creature gains flying until end of turn.

Gaea's Skyfolk

Urza's Tower

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.

Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice Mind Stone: Draw a card.

Elvish Hunter

{1}{G}, {T}: Target creature doesn't untap during its controller's next untap step.

Zephyr Falcon

Frilled Mystic

Flash
When Frilled Mystic enters, you may counter target spell.

Scaled Wurm

Joven's Ferrets

Whenever Joven's Ferrets attacks, it gets +0/+2 until end of turn.
At end of combat, tap all creatures that blocked Joven's Ferrets this turn. They don't untap during their controller's next untap step.

Graxiplon

Graxiplon can't be blocked unless defending player controls three or more creatures that share a creature type.

Urza's Mine

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.