Trample
At the beginning of your end step, each player creates a 1/1 green Plant creature token.
Whenever a creature token dies, put a +1/+1 counter on Grismold, the Dreadsower.

At the beginning of your upkeep, populate. (Create a token that's a copy of a creature token you control.)

Gruul Turf enters the battlefield tapped.
When Gruul Turf enters the battlefield, return a land you control to its owner's hand.
: Add .

Whenever you cast an instant or sorcery spell, Guttersnipe deals 2 damage to each opponent.

Draw three cards.

Choose up to two target creatures you don't control. For each of those creatures, create a token that's a copy of that creature. Those tokens gain haste. Exile them at the beginning of the next end step.

When Heart-Piercer Manticore enters the battlefield, you may sacrifice another creature. When you do, Heart-Piercer Manticore deals damage equal to that creature's power to any target.
Embalm (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Manticore with no mana cost. Embalm only as a sorcery.)

When Hedonist's Trove enters the battlefield, exile all cards from target opponent's graveyard.
You may play lands from among cards exiled with Hedonist's Trove.
You may cast spells from among cards exiled with Hedonist's Trove. You can't cast more than one spell this way each turn.

: Add .
, , Sacrifice Hedron Archive: Draw two cards.

Destroy six target creatures.

Highland Lake enters the battlefield tapped.
: Add or .

Hooded Hydra enters the battlefield with X +1/+1 counters on it.
When Hooded Hydra dies, create a 1/1 green Snake creature token for each +1/+1 counter on it.
Morph
As Hooded Hydra is turned face up, put five +1/+1 counters on it.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)
Destroy all nontoken creatures.

Flying
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When Icefeather Aven is turned face up, you may return another target creature to its owner's hand.

: Draw a card. Activate this ability only if you created a token this turn.
, , Sacrifice Idol of Oblivion: Create a 10/10 colorless Eldrazi creature token.

Exile the top three cards of your library. Until the end of your next turn, you may play those cards. If this spell was cast from a graveyard, you may play cards this way without paying their mana costs.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Destroy all creatures you don't control and all planeswalkers you don't control.

Create five 1/1 white Human creature tokens. If this spell was cast from a graveyard, create ten of those tokens instead.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Copy target instant or sorcery spell you control. If this spell was cast from a graveyard, copy that spell twice instead. You may choose new targets for the copies.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Creature tokens you control get +1/+1 and have vigilance.