msem-instigator

{G}{G}: Create a 2/2 green Wolf creature token.
{1}{G}{G}: Create Shimaru, the White Wolf, a legendary 3/3 green Wolf creature token with hexproof.
{2}{G}{G}: Creatures you control get +2/+2 and gain trample until end of turn.

Wolves you control have hexproof and “Whenever this creature deals combat damage to a player, draw a card.”
At the beginning of your end step, if you don't control a creature named Shimaru, the Unfading, create Shimaru, the Unfading, a legendary 4/4 green Wolf Spirit creature token with trample.

Target creature gets +3/+3 until end of turn and must be blocked this turn if able.
Showcase {3}{G}{G} (Then if you cast this for its showcase cost, create a 1/1 red Bard creature token that can't block and exile this. Whenever it attacks, you may cast a free copy of this.)

For each player, that player may search their library for a basic land card, choose a land card from their hand, and choose a land card from their graveyard, then put those cards onto the battlefield tapped. Then each player that searched their library this way shuffles it.

Other Warriors you control have trample.
{G}: Chratteri Valiant gets +2/+2 and gains trample until end of turn. Activate only once each turn.

Flying
Lands you control have “{T}: Add one mana of any color.”
As long as you control seven or more lands, creatures you control have trample, haste, and hexproof.

When Churning Spellroot enters, create three 1/1 black Worm creature tokens.

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)

Target creature you control gets +1/+1 until end of turn. It deals damage equal to its power to target creature you don't control.

Search your library for up to two basic land cards, reveal those cards, and put one onto the battlefield tapped and the other into your hand, then shuffle.
Coalesce {7}{G} (You may cast this from your graveyard for {7}{G}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)

Choose target creature you control. Double its power and toughness until end of turn. That creature deals X damage divided as you choose among any number of target creatures and/or planeswalkers your opponents control, where X is its power.

When Climber's Outfit enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Equipped creature has reach.
Equip {1}

When Climbing the Oldest Mountain enters, draw a card, then choose a card name.
Whenever a creature you control with the chosen name deals combat damage to a player, put two +1/+1 counters on it.

Whenever you cast a noncreature spell, you may shuffle target card an opponent owns in exile into its owner's library.

When Cloven Forms enters, reveal the top three cards of your library. Put all creature cards revealed this way into your hand and the rest into your graveyard.
{5}{G}{G}{G}, Exile Cloven Forms: Put a creature card from or hand or command zone onto the battlefield. Create a token that's a copy of it, except the token isn't legendary.

Target creature gets +4/+4 until end of turn. Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

Vigilance
Whenever Cohorts of the Grove deals combat damage to a player, if you control a creature with power 4 or greater, draw a card.

At the beginning of combat on your turn, target creature you control has base power and toughness 4/4 until end of turn.

Destroy target artifact or enchantment with mana value 4 or less.

(Add a quest counter as this enters. Sacrifice after 6.)
Whenever you cast a permanent spell, add a quest counter.
Choose a color that hasn't been chosen. Search your library for a permanent card that's exactly that color, reveal it, and put it into your hand. Then shuffle.
Exile Collect the World Stones. For the rest of the game, you may spend mana as though it were mana of any color.
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When Colony Soldier enters, create a 1/1 green Insect creature token.

Target creature gets +1/+1 and gains indestructible until end of turn.

Trample
Colossal Greatwurm enters with five +1/+1 counters on it.
Whenever a player draws a card, put a +1/+1 counter on Colossal Greatwurm.
Remove three +1/+1 counters from Colossal Greatwurm: Create a 3/3 green Wurm creature token.

Shimmer (Whenever this creature attacks, create a tapped and attacking token that's a copy of it. Exile the token at the beginning of the end step.)
When Colpah Mystic enters, you may discard a card. If you do, creatures you control named Colpah Mystic get +2/+2 until end of turn.

Until end of turn, target creature you control gets +1/+0 and gains “{T}: This creature deals damage equal to its power to up to one target creature.”