When Slumbering Grove enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Spellcharge 8

Enchant land you control
Enchanted land is a 6/6 green Serpent creature with hexproof and haste. It's still a land.
When enchanted land dies, return that card to its owner's hand.

Each creature you control enters with an additional +1/+1 counter on it if you cast it.
Whenever an Elemental creature you control enters, you gain life equal to its power.

Create a 1/1 green Saproling creature token for each permanent card you own in your graveyard and in exile.
Flashback {2}{G}{G}

{2}, Sacrifice Spry Illuminator: Destroy target enchantment or noncreature artifact.

Create two 1/1 green Elf creature tokens. Then if there are six or more different creature types among creatures you control, put a +1/+1 counter on each of those tokens.
Draw a card.

Target creature you control dares 6.

Reach
Whenever Star-Studded Sagittaur deals combat damage to a player, you may bless target land.

Enchant creature
Enchanted creature gets +3/+3.
{4}{G}, Exile Steady Bass from your graveyard: Put three +1/+1 counters on target creature. Activate only as a sorcery.

Whenever Strongarm Revolutionary attacks, you may have it dare 4.

{T}: Create a Treasure token.
{T}, Sacrifice a Treasure: Put a +1/+1 counter on target creature. Activate only as a sorcery.
{T}, Sacrifice two Treasures: Create a 0/0 colorless Robot artifact creature token with four +1/+1 counters on it. Activate only as a sorcery.
{3}: Untap Subsidized Market.

Target creature gets +3/+3 until end of turn. If the total number of land cards you own in exile, in your graveyard, and on the battlefield is at least seven, it gets +5/+5 instead, then untap it.

Haste
When Summoning Swords enters, search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.
Spellcharge 7

Flash
When Supporting Crowd enters, you may have another target creature you control dare 5.

Deathtouch
Whenever Survivor of Pidae becomes the target of a spell you control, you may destroy target artifact or enchantment you don't control.

When Sustainable Investments enters, create a Treasure token.
Treasures you control have “{T}: Add one mana of any color.”

Target creature you control deals damage equal to its power to another target creature. When it deals excess damage this way, it deals damage equal to the excess to any target.

Deathtouch
{1}, Sacrifice Telhedo Saboteur: Destroy target artifact or enchantment.

Legendary creatures you control have ward {1}.
At the beginning of your end step, if you control a legendary creature, you may draw a card.

Deathtouch
{G}: Temptuous Crooner gains reach until end of turn.

When Terror of Olantin enters, create a number of 1/1 blue Tentacle creature tokens equal to your devotion to green.

Teslahammer Giant enters with a +1/+1 counter on it.

Test Subject Alpha enters with a +1/+1 counter and a trample counter on it.
At the beginning of your upkeep, you may move a counter from Test Subject Alpha onto another creature.

Defender, trample
At the beginning of combat on your turn, if you have at least 3 life more than than your starting life total, Thawing Yeti loses defender until end of turn. Otherwise, you gain 2 life.

Thorngrafter enters with a +1/+1 counter and your choice of counter from among deathtouch, reach, trample or vigilance on it.
{1}, {T}: Put a +1/+1 counter on Thorngrafter.
{T}: You may move a counter from Thorngrafter to another creature you control. Activate only as a sorcery.