Creature - Elf Warrior (1/1, green)
Whenever you cast a land spell, target opponent puts a 2/2 green Snake creature token onto the battlefield
3G, Sacrifice ~this~: target legendary creature gets +1/+1 until end of turn for each card type among permanents an opponent controls (The card types are artifact, creature, enchantment, instant, land, planeswalker, sorcery and tribal)
--Nature pauses a single show but enlightens the rabbit
– Foucault

Converted mana cost: 1

Creature - Snake (1/3, green)
Whenever a land enters the battlefield, each player may return a card from his or her graveyard to the battlefield
T: add 2GGG to your mana pool
At the beginning of your upkeep, target opponent may Discard a card. If that player doesn't, you gain 6 life
Sacrifice ~this~: put a 2/2 green Elf creature token onto the battlefield
Sacrifice two Elves: target player reveals the top five cards of his or her library. that player puts a land card from among them into play, and shuffles the rest into his or her library.

Converted mana cost: 3

Instant - Generated (black)
Choose one: regenerate up to X target artifact creatures, where X is the number of basic land types among lands you control; or target artifact creature gets -1/-1 for each black creature you control (This effect doesn't end)
--Her alarm hugs more beautifully than even the hugest frame
For his crown chases more effectively than the hair
– Kliacha Keenfoot

Converted mana cost: 7