When this creature enters, you may sacrifice a land. If you do, create two tapped Heartwood tokens. (They're red and green artifacts with ": Add or .")
Tap two untapped artifacts you control: Put two +1/+1 counters on this creature.

Menace
This creature gets +3/+0 as long as an opponent has eight or more cards in their graveyard.
Whenever this creature attacks or blocks, each player mills a card.

When this creature enters, put a +1/+1 counter on target creature.
Whenever a creature you control with a +1/+1 counter on it attacks, each opponent loses 1 life and you gain 1 life.

Vigilance
Whenever this creature becomes the target of a spell or ability an opponent controls, you may draw a card.
Infusion — This creature gets +2/+0 as long as you gained life this turn.

Enchant opponent
At the beginning of enchanted opponent's end step, you and that player each draw a card.
When you attack enchanted opponent or a planeswalker they control or when they attack you or a planeswalker you control, sacrifice this Aura.

Vigilance
Whenever this creature attacks, untap another target creature you control.

Haste
Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature, then scry 1.

, Collect evidence 2: This creature becomes a Human Detective with base power and toughness 4/4 and gains vigilance.
, Collect evidence 4: If this creature is a Detective, it becomes a legendary creature named Mileva, the Stalwart, it has base power and toughness 5/5, and it gains "Other creatures you control have indestructible."

When this creature enters, target creature gets +0/+1 until end of turn.

This spell costs less to cast if you control a creature with menace.
Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn.

Flying
Whenever Teneb deals combat damage to a player, you may pay . If you do, put target creature card from a graveyard onto the battlefield under your control.

As an additional cost to cast this spell, sacrifice a creature.
Target opponent discards two cards.

Tendrils of Corruption deals X damage to target creature and you gain X life, where X is the number of Swamps you control.

Target player loses 2 life and you gain 2 life.
Storm

: Put seven +1/+1 counters on target noncreature land you control. It becomes a 0/0 Fungus creature with haste. It's still a land.

This land enters with a charge counter on it.
: Add .
, Remove a charge counter from this land: Add one mana of any color.

Ascend
At the beginning of each upkeep, create a 1/1 green Saproling creature token.
Saprolings you control get +2/+2 as long as you have the city's blessing.

Target creature you control deals damage equal to its power to target creature an opponent controls.

: Add one mana of any color.
: Put a +1/+1 counter on this creature.
(This token's mana cost is .)

Offspring
: Add one mana of any color.
: Put a +1/+1 counter on this creature.

When this enchantment enters, all non-Elemental instant and sorcery cards you own perpetually become Elemental kindreds in addition to their other types.
Whenever you cast an Elemental spell, put a flame counter on this enchantment. Then if it has three or more flame counters on it, remove them, conjure a card named Flamebraider onto the battlefield, and it gains haste and "At the beginning of the end step, sacrifice this creature."

Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Then if you control seven or more lands and/or Treefolk, create a 3/4 green Treefolk creature token with reach.

As an additional cost to cast this spell, sacrifice a creature.
Create X 1/1 black and green Pest creature tokens with "When this token dies, you gain 1 life," where X is the sacrificed creature's power.

Creatures you control get +1/+1 and gain lifelink until end of turn. Untap those creatures.