When Springbloom Druid enters the battlefield, you may sacrifice a land. If you do, search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle your library.
Treetop Village comes into play tapped. T: Add G to your mana pool. 1G: Treetop Village becomes a 3/3 green Ape creature with trample until end of turn. It's still a land. (If it would deal enough combat damage to its blockers to destroy them, you may have it deal the rest of its damage to defending player.)
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) T: Add C.
Whenever a creature you control dies, you gain 1 life and draw a card.
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) When Viridian Corrupter enters the battlefield, destroy target artifact.
You may have Estrid's Invocation enter the battlefield as a copy of any enchantment you control, except it gains "At the beginning of your upkeep, you may exile this enchantment. If you do, return it to the battlefield under its owner's control."
If Leyline of Sanctity is in your opening hand, you may begin the game with it on the battlefield. You have hexproof. (You can't be the target spells or abilities your opponents control.)
[0]: Create two 2/2 black and green Wolf creature tokens with "When this creature dies, put a loyalty counter on each Garruk you control." [-3]: Destroy target creature. Draw a card. [-6]: You get an emblem with "Creatures you control get +3/+3 and have trample."
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.
Target player loses 2 life and you gain 2 life. Storm (When you play this spell, copy it for each spell played before it this turn. You may choose new targets for the copies.)
[+1]: Create a 2/2 black Zombie creature token. Put the top two cards of your library into your graveyard. [-3]: Return target creature card from your graveyard to the battlefield. That creature is a black Zombie in addition to its other colors and types. [-7]: Destroy all non-Zombie creatures.