Sacrifice a creature: This creature gets +2/+2 until end of turn.

Pay half your life, rounded up: This enchantment becomes a 4/4 Phyrexian Horror creature with flying.

: Counter target red spell.

Sacrifice this creature: The next time a source of your choice would deal damage to any target this turn, prevent that damage.

At the beginning of each player's upkeep, if that player controls more lands than each other player, the player creates a 1/1 green Saproling creature token.

Create three 2/2 white Knight creature tokens. Exile them at the beginning of the next cleanup step.

: This creature gets +1/+1 until end of turn.

Whenever this creature blocks or becomes blocked, it gets +2/-2 until end of turn.

Search your library for up to two Forest cards, reveal those cards, put them into your hand, then shuffle.

First strike, haste
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Return all green permanents to their owners' hands.

Sacrifice this creature: Add .

Whenever an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/4 Soldier creature.
: This permanent becomes an enchantment.

Target player draws X cards.

At the beginning of your upkeep, sacrifice this enchantment unless you sacrifice a creature.
If a land is tapped for mana, it produces instead of any other type and amount.

Flying
Whenever this creature attacks, it gets +2/+0 until end of turn.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

When this creature enters, you may put an Aura card from your hand onto the battlefield attached to this creature.

, : Put a +1/+1 counter on target creature.

: Return this creature and target creature you control to their owner's hand.

Destroy target artifact.
Cycling (, Discard this card: Draw a card.)

Arc Lightning deals 3 damage divided as you choose among one, two, or three targets.

When an opponent casts a spell, if this permanent is an enchantment, it becomes a 4/4 Serpent creature with "This creature can't attack unless defending player controls an Island."
Cycling (, Discard this card: Draw a card.)

Whenever this creature becomes blocked by a creature, this creature gets +1/+1 until end of turn.

, Sacrifice a permanent: Return target creature to its owner's hand.

This creature can't be blocked except by creatures with flying.

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

: Counter target spell unless its controller pays .

When this creature enters, add .

, , Sacrifice this artifact: Return all enchantment cards from your graveyard to your hand.

Acidic Soil deals damage to each player equal to the number of lands they control.

Enchant creature
Whenever enchanted creature deals combat damage to a player, that player sacrifices a land of their choice.

When this creature enters, return target enchantment card from your graveyard to your hand.

Whenever a player casts a green spell, put a +1/+1 counter on this creature.

Whenever a creature dies, that creature's controller may draw a card.

Treefolk Seedlings's toughness is equal to the number of Forests you control.